tag:blogger.com,1999:blog-43498837858568344062024-03-20T03:24:53.948-04:00若水 Ruoshui万物并作,吾以观复。夫物芸芸,各复归其根。
The operation of anything is governed by some rule.柯嘉 Kejiahttp://www.blogger.com/profile/00157527027426148659noreply@blogger.comBlogger347125tag:blogger.com,1999:blog-4349883785856834406.post-18984643907280912032016-05-25T00:10:00.004-04:002016-05-25T00:10:48.677-04:00firefox或iceweasel:禁用键切换显示菜单项。在firefox或iceweasel中,当隐藏顶端菜单后,<Alt>键会被用于切换显示或隐藏菜单,禁用改选项:<br />
<ol>
<li>由地址栏去往:about:config;</li>
<li>ui.key.menuAccessKeyFocuses置为false。</li>
</ol>
<div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-41704178478590785872015-05-21T00:56:00.003-04:002015-05-21T01:03:14.355-04:00旋转PDF文档<br />
convert命令可以用以旋转,但分辨率会大大降低,pdftk的功效更胜一筹。<br />
<br />
<ul>
<li>整个文档顺时针旋转180度(即文档头部朝南(S)):
<blockquote class="tr_bq">
$ pdftk in.pdf cat 1-endS output out.pdf</blockquote>
</li>
<li>文档第7页顺时针旋转90度(即文档头部朝东(E)):
<blockquote class="tr_bq">
$ pdftk in.pdf cat 1-6 7E 8-end output out.pdf</blockquote>
</li>
</ul>
<br /><div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-45306174179437956322013-09-22T14:02:00.000-04:002013-09-22T14:02:02.605-04:00有用的java工具class文件反编译:<a href="https://varaneckas.com/jad/" target="_blank">jad</a>。class文件、jar包混淆器:<a href="https://proguard.sourceforge.net/" target="_blank">proguard</a>。<div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-85899857830195386802013-09-11T17:01:00.002-04:002013-09-11T17:01:36.324-04:00保养颈椎导读:最新调查显示:由于长期慢性劳损,颈椎病的发病年龄已经从40岁提前到30岁,并成为名副其实的白领职业病。
<br />
<br />
将你的头轻轻后仰,然后尽力向左转,再向右转,你一定会找到酸疼、僵硬的感觉。让人担心的是,颈椎上承头颅,下接躯干,既是脊椎中活动最多部位,也是神经中枢最重要部位,更是心脑血管的必经之路,一旦发生故障,后果严重。
<br />
<div>
<br /></div>
<h2>
<b>颈椎的24小时保养</b></h2>
<br />
亡羊补牢永远比不上未雨绸缪,与其等到颈椎受伤,再去接受长期繁琐的治疗,还不如先发制人,主动出击,让颈椎受到我们的精心照顾,不发生事故。
<br />
<br />
<h3>
保养秘笈一7:00</h3>
<br />
<h4>
早晨主动调温</h4>
<br />
<br />
古人喜欢穿长衣服,一方面是为了礼仪,其实另一方面也是养生之需。无论冬夏,都要给自己的颈椎以舒适的温度。即使是为了美丽,也要在办公室准备一件披肩,以保护好颈背部。偶然有受寒现象,给自己煎一碗驱寒汤:材料是红糖2汤匙、生姜7片,水煎10分钟,饮用1~2次就可以驱走寒气。
<br />
<br />
<h3>
保养秘笈二10:00
</h3>
<br />
<h4>
5分钟的颈椎操</h4>
<br />
即使身处人多的办公室,你也可以很好地保养颈椎,比如利用工间休息练习一下颈椎操:端坐,全身不动,单头部运动,分别做低头、抬头、左转、右转、前伸、后缩;顺、逆时针环绕动作。每次坚持5分钟,动作要轻缓、柔和。
<br />
<br />
<h3>
保养秘笈三14:00
</h3>
<br />
<h4>
两种按摩的方法
</h4>
<br />
经过一个上午的工作,到了下午两点钟,可能脖子早已疲惫不堪,精力有些不支,这里有两个最简单的急救方法:
<br />
(1)脖子后面,从头颅底端到躯干上部这一段分布着百劳穴的3个点。在不遗余力工作时,不妨抽出短短几分钟来按摩这3个反应点,即刻缓解颈椎疲劳,放松全身。
<br />
(2)两手手指互相交叉,放在颈部后方,来回摩擦颈部,力度要轻柔,连续摩擦50次,颈部发热后,会有很放松和舒适的感觉。
<br />
<br />
<h3>
保养秘笈四18:00
</h3>
<br />
<h4>
做做户外运动
</h4>
<br />
软骨组织的营养可不是通过血液供给的,而是通过压力的变化来进行营养交换。如果缺乏活动的话,软骨就会遭遇营养不良,进而导致退化,增加户外活动是养护颈椎的方法之一,要向你推荐的运动项目是游泳、打球、练瑜伽等。
<br />
<br />
<h3>
<b>保养秘笈五20:00
</b></h3>
<br />
<h4>
晚餐补肾加分
</h4>
<br />
作为一位忙碌的白领,你可能没有足够时间准备健康营养的早餐和午餐,那晚餐的时候可以吃一些营养骨髓的食物。中医认为胡桃、山萸肉、生地、黑芝麻、牛骨等具有补肾髓功能,可以把这些材料加入到你的晚餐中,以起到强壮筋骨,推迟肾与脊柱蜕变的效果。
<br />
<br />
<h3>
保养秘笈六21:00
</h3>
<br />
<h4>
学学大鹏展翅
</h4>
<br />
看电视的时候,你可以学一学大鹏展翅:轻轻弯腰至90度,两个手臂模仿大鹏飞行一样伸展开,但可不要将头抬起来,越高越好,坚持5分钟。这个动作可以帮助你增加颈椎部肌肉的韧性。
<br />
<br />
<h3>
保养秘笈七22:00
</h3>
<br />
<h4>
享受中药热敷
</h4>
<br />
将小茴香些许、盐半斤一起炒热,装入布袋,放在颈背部热敷30分钟。每日1次。可改善颈背部血循环,缓解肌肉痉挛。注意,别让温度太高或时间过久。
<br />
<br />
<h3>
保养秘笈八23:00
</h3>
<br />
<h4>
选择健康枕头
</h4>
<br />
枕头和床也是颈椎的亲密伴侣,枕头过高或者过低,床垫过于柔软都会连累颈椎。枕头宽度应达肩部,中间低,两端高的元宝形的保健枕头对颈椎有很好的支撑作用,可以让颈椎得到很好的休息;对于颈椎不好的人来说,木板床、棕绷床是上选,而那种过分柔软的床肯定不利于颈椎。<br />
<br /><div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-46775409573403502142013-09-10T13:34:00.001-04:002013-09-10T13:34:19.045-04:00室内植物参考:<div>
<a href="http://www.quora.com/What-indoor-plant-produces-the-most-oxygen">http://www.quora.com/What-indoor-plant-produces-the-most-oxygen</a></div>
<div>
<a href="http://www.community.homedepot.com/t5/Outdoors/Houseplants-Natural-and-Beautiful-Air-Purifiers/m-p/38803/highlight/true#M275">http://www.community.homedepot.com/t5/Outdoors/Houseplants-Natural-and-Beautiful-Air-Purifiers/m-p/38803/highlight/true#M275</a></div>
<div>
<br />散尾葵(Areca Palm - Chrysalidocarpus lutescens):<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhhFLflUy7phn7pnbFdW7vnARzhrJOlp8QkBuoXhUt9hsZFgS438X5hslTOx0N0upJuw9KNaez74F3xEjOmLMyczZ2YGeepaD96VlTA__qGkm0sgYPPRCM0euEHCQH6YkDxh-MXctQiSUs/s1600/Dypsis_lutescens1.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhhFLflUy7phn7pnbFdW7vnARzhrJOlp8QkBuoXhUt9hsZFgS438X5hslTOx0N0upJuw9KNaez74F3xEjOmLMyczZ2YGeepaD96VlTA__qGkm0sgYPPRCM0euEHCQH6YkDxh-MXctQiSUs/s320/Dypsis_lutescens1.jpg" width="237" /></a></div>
<div>
<br /></div>
虎皮兰(Mother-in-law's Tongue - Sansevieria trifasciata):<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhx3fsV_nlNERXc3oq_CRK4R_bAQWJ3I1ONt6HsQbORc83ptda2UrxMWaQbN0kj2M81WLtbwIRuLJi2FLy1FNJnGH9p015_JaT32NsuCv2BhtDncc7Iasoah2EzFkOTa3I7jdRzzmoWWA4/s1600/Starr_070906-9017_Sansevieria_trifasciata.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhx3fsV_nlNERXc3oq_CRK4R_bAQWJ3I1ONt6HsQbORc83ptda2UrxMWaQbN0kj2M81WLtbwIRuLJi2FLy1FNJnGH9p015_JaT32NsuCv2BhtDncc7Iasoah2EzFkOTa3I7jdRzzmoWWA4/s320/Starr_070906-9017_Sansevieria_trifasciata.jpg" width="240" /></a></div>
绿萝(Money Plant - Epipremnum aureum):<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhakFTiDH-Q2w43H2Ij6ZjsyKF7ydCvh1b0ZOL5VsYyAA-N5BjBhyphenhyphenwlWS4k_fXoqToDHSrmdzxr1rFZkOEBtiagK3dOLOEQv-DRvHMz3JpCOEZD6WE3l-RiVtK0oJ34sDbGBHXNsHZ8lFY/s1600/images.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhakFTiDH-Q2w43H2Ij6ZjsyKF7ydCvh1b0ZOL5VsYyAA-N5BjBhyphenhyphenwlWS4k_fXoqToDHSrmdzxr1rFZkOEBtiagK3dOLOEQv-DRvHMz3JpCOEZD6WE3l-RiVtK0oJ34sDbGBHXNsHZ8lFY/s1600/images.jpg" /></a></div>
<div>
非洲菊(Gerbera Daisy):</div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh6FOaesioXJZMrEkfyEmLyI5LQa8wgH4ZOLpVDke2LWmC2YtybVq2ZAAIcKuGVyuDBDtATWPC0MVdiAert949CDBpx0M8IsNLpAWcvueB1PPNGvqqmkOXrpXNVQFZpKbiQcyP6QIv7Wvw/s1600/easter-gerberas2.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh6FOaesioXJZMrEkfyEmLyI5LQa8wgH4ZOLpVDke2LWmC2YtybVq2ZAAIcKuGVyuDBDtATWPC0MVdiAert949CDBpx0M8IsNLpAWcvueB1PPNGvqqmkOXrpXNVQFZpKbiQcyP6QIv7Wvw/s320/easter-gerberas2.jpg" width="187" /></a></div>
<div>
各种菊花(Chrysanthemum):</div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgXjqeNdrHv3d_s_Flfn_In7zQ1BtXkMfO9qKHU5AYmv3avg93q5o5vV4LZEhaDmZUy-RjRQdsJ6grfxGY05yiAbF9ljV66ieln_bYcZ9t_pUfo3Q_Tx9iqRfs1t-jtzZ46koBnU1d3oBQ/s1600/chrysanthemum_4309.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgXjqeNdrHv3d_s_Flfn_In7zQ1BtXkMfO9qKHU5AYmv3avg93q5o5vV4LZEhaDmZUy-RjRQdsJ6grfxGY05yiAbF9ljV66ieln_bYcZ9t_pUfo3Q_Tx9iqRfs1t-jtzZ46koBnU1d3oBQ/s320/chrysanthemum_4309.jpg" width="320" /></a></div>
<div>
鹅掌藤(Schefflera):</div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEixm_-u5wI7OUiGu67znvrexIVPzjJ2aWwX8K_Nu5ci1ZKCd8iuBGfpUMkPhhla2gENtZL_yjRLYNyCE1I_C-JrXO_eLhGQc_mo6OK6M1smiaenrmdrpcjF7Nv2XL8TzoNlsNyzywY6wdY/s1600/Schefflera_Actinaphylla.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEixm_-u5wI7OUiGu67znvrexIVPzjJ2aWwX8K_Nu5ci1ZKCd8iuBGfpUMkPhhla2gENtZL_yjRLYNyCE1I_C-JrXO_eLhGQc_mo6OK6M1smiaenrmdrpcjF7Nv2XL8TzoNlsNyzywY6wdY/s320/Schefflera_Actinaphylla.jpg" width="212" /></a></div>
<div>
<br /></div>
羽裂蔓绿绒(Philodendron selloum):</div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiBZOzRjZ50U3Th-d-tOa_ypF3IzZ7jxtUiUYTx6TV0-d9099Bmsc4_gqCReAO4CNa4bnE-fym68pSpNaXtRsIAFiiqj_aiJl_mjyIh4z-AHbqdF481e7HcKymYUW5Adt7W8EtAG0dYr1c/s1600/20060826163601654.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiBZOzRjZ50U3Th-d-tOa_ypF3IzZ7jxtUiUYTx6TV0-d9099Bmsc4_gqCReAO4CNa4bnE-fym68pSpNaXtRsIAFiiqj_aiJl_mjyIh4z-AHbqdF481e7HcKymYUW5Adt7W8EtAG0dYr1c/s320/20060826163601654.jpg" width="320" /></a></div>
吊兰(spider plant---Chlorophytum comosum):<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjpuMJ93wyxs_K_lUwpIupacdgackDtPO19AvKo9bimBmqdJcjiYdytQhqCXKSmLGtgxA1UYMNJATk7vbKMyQlen6Wj4eViiHjJhe0eu1KtY33179MO4Yd5VdBTACOBF3vVe8PVOWMvrQY/s1600/bigstock-Spider-Plant-138549.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjpuMJ93wyxs_K_lUwpIupacdgackDtPO19AvKo9bimBmqdJcjiYdytQhqCXKSmLGtgxA1UYMNJATk7vbKMyQlen6Wj4eViiHjJhe0eu1KtY33179MO4Yd5VdBTACOBF3vVe8PVOWMvrQY/s320/bigstock-Spider-Plant-138549.jpg" width="240" /></a></div>
<div>
白掌(peace lily):</div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgfAWd9QaQx3WVN9gkm7VCYB-RQWkHnKSOXKv-_hXLkHsVYdxNmanR4xNFKzPYrSx97zJx8yRTI1jr9D_Y47ekC-AOEzhpK4iy_WEFwyn6pu369pyKWORd7e-a-OvlbdECErQPMxB_nCtM/s1600/peace-lily-01.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgfAWd9QaQx3WVN9gkm7VCYB-RQWkHnKSOXKv-_hXLkHsVYdxNmanR4xNFKzPYrSx97zJx8yRTI1jr9D_Y47ekC-AOEzhpK4iy_WEFwyn6pu369pyKWORd7e-a-OvlbdECErQPMxB_nCtM/s320/peace-lily-01.jpg" width="240" /></a></div>
花叶万年青(Dieffenbachia):<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhNdMvAoqrc5D6z0P5eyJcBs1ZjXVBtLl09GYr8BGuOesPsOtXD1lWrKmvQopLGQEkeTPdO5iMmKy0iLVxbTKZVnxFzJZx2x4KSTVa6gy5PqmSQf4APmthdcHym9VxWx-eI9mrLGt1VXBA/s1600/Colpfl29.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhNdMvAoqrc5D6z0P5eyJcBs1ZjXVBtLl09GYr8BGuOesPsOtXD1lWrKmvQopLGQEkeTPdO5iMmKy0iLVxbTKZVnxFzJZx2x4KSTVa6gy5PqmSQf4APmthdcHym9VxWx-eI9mrLGt1VXBA/s320/Colpfl29.jpg" width="320" /></a></div>
<div>
<br /></div>
<div>
粗肋草(Chinese evergreen,Aglaonema):<br /><div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjsu1DTMcLKn7QrfQtf7onkvkaiQUZmr-9IuS43nw7JGvPUCMUcijbVdFHWFe49y-D-hUy5CUFRCAcXNFZ7Fzhpy3X2FTw9nwVynHbzBrW7c0x5pNkJWfedMs7isVkneq2artbr1xORIyc/s1600/C30-2966.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="315" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjsu1DTMcLKn7QrfQtf7onkvkaiQUZmr-9IuS43nw7JGvPUCMUcijbVdFHWFe49y-D-hUy5CUFRCAcXNFZ7Fzhpy3X2FTw9nwVynHbzBrW7c0x5pNkJWfedMs7isVkneq2artbr1xORIyc/s320/C30-2966.jpg" width="320" /></a></div>
Peperomia:<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvgcI84AmEAZzizkHzxGdLWy7njyppS2uwQEqKz7dxl5ea3Bmtl5A4DQ1Mx3cFn-ZtJENOHQTCq-ym-facvRNl1hXgNkaTq-quYW2-pfeNMa8UhPFBsg5RDs8zKmJPnvO1171e77i0q5g/s1600/Peperomia_caperata_1-OB9.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvgcI84AmEAZzizkHzxGdLWy7njyppS2uwQEqKz7dxl5ea3Bmtl5A4DQ1Mx3cFn-ZtJENOHQTCq-ym-facvRNl1hXgNkaTq-quYW2-pfeNMa8UhPFBsg5RDs8zKmJPnvO1171e77i0q5g/s320/Peperomia_caperata_1-OB9.jpg" width="320" /></a></div>
红掌(Anthurium):<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj5tltWtHhlC3rNBAj4s_9xIchvoWVDqr2VxDWd3IRK4DY6cd6xjyEpN_y98jelo5gdRDE5EqXFtkGbxujkxv98qJuyG64uMnJWDdhliiWWTxVVAIDqmoG3i4NY4TxEw6RpWoW5TLCvvXY/s1600/img_4319.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj5tltWtHhlC3rNBAj4s_9xIchvoWVDqr2VxDWd3IRK4DY6cd6xjyEpN_y98jelo5gdRDE5EqXFtkGbxujkxv98qJuyG64uMnJWDdhliiWWTxVVAIDqmoG3i4NY4TxEw6RpWoW5TLCvvXY/s320/img_4319.jpg" width="320" /></a></div>
<div>
蕨类(fern):</div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiHV96dWxLfk3TDKvBpDnq8hbw401Wa_HNvJfOdK7vLo8-G0AXD85SyLqTRalkSeG43uMqts3joTMXODXe484BpIgnqhYLVeFcu82lQ-zh5PFE68OqZe6_N8LGAutDPIsfCL1aR07YUDnk/s1600/ferns-on-back-porch1.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiHV96dWxLfk3TDKvBpDnq8hbw401Wa_HNvJfOdK7vLo8-G0AXD85SyLqTRalkSeG43uMqts3joTMXODXe484BpIgnqhYLVeFcu82lQ-zh5PFE68OqZe6_N8LGAutDPIsfCL1aR07YUDnk/s320/ferns-on-back-porch1.jpg" width="320" /></a></div>
<div>
巴西木(mass cane):<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgtGpmtHcD01Zq_vJK_SgaK1vBeT-x_yiYi9rYikJgUDwePBXofXQwXvINFEoiEhpr9sERGTVvhF0Qhv7rk33fTEmrr7NxjOa64Iq7ughFTm51Xf4zyqr5CTfCpcjkApTRPclOE4XtehGI/s1600/5b7bd2_268e9a84c0cd76cfb94e61620eedd3e9.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgtGpmtHcD01Zq_vJK_SgaK1vBeT-x_yiYi9rYikJgUDwePBXofXQwXvINFEoiEhpr9sERGTVvhF0Qhv7rk33fTEmrr7NxjOa64Iq7ughFTm51Xf4zyqr5CTfCpcjkApTRPclOE4XtehGI/s320/5b7bd2_268e9a84c0cd76cfb94e61620eedd3e9.jpg" width="240" /></a></div>
</div>
<div>
龙血树(Dracena,巴西木为其一种):</div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjcQ4MdERypeBWA9nsZCOxHaeQjXdZVsTieET22V1tAycZPy9KKnyI4mDpgoaIfl6UK7znvOtY7rahPfffRHJl0LX5t38z95Ii9GHsFJj8WmpeibnishPA9T34Lm5eRfmZzNlMlKv9L1w4/s1600/Dracena-in-vaso.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjcQ4MdERypeBWA9nsZCOxHaeQjXdZVsTieET22V1tAycZPy9KKnyI4mDpgoaIfl6UK7znvOtY7rahPfffRHJl0LX5t38z95Ii9GHsFJj8WmpeibnishPA9T34Lm5eRfmZzNlMlKv9L1w4/s320/Dracena-in-vaso.jpg" width="228" /></a></div>
<div>
剑叶龙血树(Pleomele,Dracaena reflexa,<span style="background-color: white; color: #444444; font-family: arial, 'WenQuanYi Micro Hei', 'WenQuanYi Micro Hei Mono', 'Microsoft Yahei', 'Microsoft Yahei Mono', sans-serif; font-size: x-small; line-height: 12.800000190734863px;"> </span><span style="background-color: white; color: #444444; font-family: arial, 'WenQuanYi Micro Hei', 'WenQuanYi Micro Hei Mono', 'Microsoft Yahei', 'Microsoft Yahei Mono', sans-serif; font-size: x-small; line-height: 12.800000190734863px;">Song of India—):</span></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiV1xgqbOR-QneWeU9A-yehPNspNmiDokcize_r47ZGwb18WIeKn6Cssi9ahyphenhyphenxMspg88Wpfz1Vn63Q2DVLdZM6lVc4gLGiGT1MR2shqIxprTdguyZmNMgfs3kpwVKS2sM2oIQg9jQoZv8c/s1600/camerazoom-201205140802032211337229942320.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="240" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiV1xgqbOR-QneWeU9A-yehPNspNmiDokcize_r47ZGwb18WIeKn6Cssi9ahyphenhyphenxMspg88Wpfz1Vn63Q2DVLdZM6lVc4gLGiGT1MR2shqIxprTdguyZmNMgfs3kpwVKS2sM2oIQg9jQoZv8c/s320/camerazoom-201205140802032211337229942320.jpg" width="320" /></a></div>
<div>
<span style="background-color: white; color: #444444; font-family: arial, 'WenQuanYi Micro Hei', 'WenQuanYi Micro Hei Mono', 'Microsoft Yahei', 'Microsoft Yahei Mono', sans-serif; font-size: x-small; line-height: 12.800000190734863px;"><br /></span></div>
<div>
棕榈(palm):</div>
</div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhatGLMsD5NgD7bq_I4dyB7ELZZPF71935EeYQ2CX_B-QMSKGCV2vRlll9SFyilQVrP-o74xeqZi_bCsNec77kl-Iow0u02IsOAVmXaV15H_hW6nRU1n1UBlQ1I3K4N6EGPjBhPWDpHXNQ/s1600/shutterstock_75566773.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="213" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhatGLMsD5NgD7bq_I4dyB7ELZZPF71935EeYQ2CX_B-QMSKGCV2vRlll9SFyilQVrP-o74xeqZi_bCsNec77kl-Iow0u02IsOAVmXaV15H_hW6nRU1n1UBlQ1I3K4N6EGPjBhPWDpHXNQ/s320/shutterstock_75566773.jpg" width="320" /></a></div>
<div>
<br /></div>
<div>
蝴蝶兰(Phalaenopsis Orchid):</div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjTgMQFQz3nZDq-4Ygo0WkpzZ3nEYnuGb7ZfOmf1uc0q3op6cJ1RlqXRCKXt9V776XOW9ueLtcips9-xXVt-3rEyxpHgEiYyTJxBToCl1k0mR4oXbpJgEPSR4eTcfJ1BTGt4Db7KjtB7UE/s1600/Den.+phalaenopsis+alba.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="260" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjTgMQFQz3nZDq-4Ygo0WkpzZ3nEYnuGb7ZfOmf1uc0q3op6cJ1RlqXRCKXt9V776XOW9ueLtcips9-xXVt-3rEyxpHgEiYyTJxBToCl1k0mR4oXbpJgEPSR4eTcfJ1BTGt4Db7KjtB7UE/s320/Den.+phalaenopsis+alba.jpg" width="320" /></a></div>
金钱树(<a href="http://en.wikipedia.org/wiki/Zamioculcas">Zamioculcas</a>,zz plant):<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQrZtAkp88Ct7t3tDCVc6F0FsvLq0jGxHjFqghlNMTLHXHvi3NU1UiN4XKD5WpMFfehrekmiU3c25pUaM0nrqTZPlbuS3wdoRlMwggG-wcgNH2cfZ59HcZRNj4L-Rnw0-avppmhoomy8A/s1600/Zamioculcas_zamiifolia_1.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQrZtAkp88Ct7t3tDCVc6F0FsvLq0jGxHjFqghlNMTLHXHvi3NU1UiN4XKD5WpMFfehrekmiU3c25pUaM0nrqTZPlbuS3wdoRlMwggG-wcgNH2cfZ59HcZRNj4L-Rnw0-avppmhoomy8A/s320/Zamioculcas_zamiifolia_1.jpg" width="240" /></a></div>
<div>
常春藤(ivy):</div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg9AeJfEyds5LXwWqLOgc1tkM5IoWoW4PzFTmkYMc4I-um8rAuv-hRQRFJfio2DjJqgQjSliEbm7E2hOekRy7Z0O_juUzQe0zo4STHMwpPgHkEyUGCW9NcDJpIzSw2UcPf6_4Y_0X1jyrI/s1600/ivy.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="152" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg9AeJfEyds5LXwWqLOgc1tkM5IoWoW4PzFTmkYMc4I-um8rAuv-hRQRFJfio2DjJqgQjSliEbm7E2hOekRy7Z0O_juUzQe0zo4STHMwpPgHkEyUGCW9NcDJpIzSw2UcPf6_4Y_0X1jyrI/s320/ivy.jpg" width="320" /></a></div>
<div>
<br /><div>
<br /></div>
</div>
<div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-16947164646285202302013-09-05T22:06:00.001-04:002013-09-05T22:06:14.778-04:00显示文件尺寸单纯显示文件(目录亦是作为文件)尺寸:<br />
<blockquote>
$ ls -lh foo.tar</blockquote>
但ls更主要地是用于显示文件本身属性:对目录来说,尺寸属性不包括目录内容。因此,最好使用更有效的显示目录尺寸的工具du:<br />
<blockquote>
$ du -sh /foo/bar</blockquote>
<div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-1821918802003651822013-08-22T15:46:00.002-04:002013-08-22T15:46:25.986-04:00emacs printing via cups`cups-bsd' should be installed in order to properly `print-buffer'.<br />
<br /><div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-2260319362263703092013-08-07T12:31:00.002-04:002013-08-07T12:31:32.526-04:00gnome3 super key bindingsometimes, super key bindings in gnome 3 do not work correctly---an input box appears at the right-bottom corner. a workaround is using <b>dconf-editor</b> to set the key empty: <b>/org/gnome/mutter/overlay-key</b>.<br />
<br />
see: <a href="https://github.com/linuxmint/Cinnamon/issues/549">https://github.com/linuxmint/Cinnamon/issues/549</a>.<div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-5721635509896929452013-08-06T12:37:00.004-04:002013-08-06T12:37:43.427-04:00configuring fbtermedit the file `~/.fbtermrc'. for example, set the font:<br />
<blockquote>
font-names='Droid Sans','Droid Sans Mono',mono<br />
font-size=16<br />
<div>
<br /></div>
</blockquote>
<div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-13838120213509081882013-08-05T14:46:00.002-04:002013-08-05T14:46:54.338-04:00ext file system accessing tool in windowsext2fsd:<br />
<a href="http://sourceforge.net/projects/ext2fsd/">http://sourceforge.net/projects/ext2fsd/</a><div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-8538372009929637982013-07-14T13:32:00.001-04:002013-07-14T13:32:10.385-04:00professional gloves`mechanix' is a professional gloves brand:<br />
<a href="http://www.mechanix.com/">http://www.mechanix.com/</a><br />
<br /><div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-80144452996617996572013-07-13T13:15:00.002-04:002013-07-13T13:15:40.851-04:00蔷薇<a href="http://blog.163.com/lala__dudu/blog/static/1956320882013458138886/">http://blog.163.com/lala__dudu/blog/static/1956320882013458138886/</a><div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-30686341932101649642013-07-01T14:10:00.001-04:002013-07-01T14:10:27.569-04:00《踏雪寻梅》黄自曲,刘雪庵词:<br />
<blockquote>
雪霁天晴朗,蜡梅处处香,骑驴灞桥过,铃儿响叮当。响叮当响叮当响叮当响叮当,好花采得瓶供养,伴我书声琴韵,共度好时光。<br />
<br />
崎岖山径上,蜡梅枝头放,一路寒风中,铃儿响叮当。响叮当响叮当响叮当响叮当,心随花儿醉芬芳,清幽到我胸怀,共度好时光。<br />
<br />
尘世多风霜,蜡梅朵朵黄,空谷传回声,铃儿响叮当。响叮当响叮当响叮当响叮当,爱花人儿太痴狂,只求朝夕相对,共度好时光。<br />
<br />
雪霁天晴朗,蜡梅处处香,骑驴灞桥过,铃儿响叮当。响叮当响叮当响叮当响叮当,好花采得瓶供养,伴我书声琴韵,共度好时光。</blockquote>
<div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-37202282698454797862013-07-01T14:04:00.002-04:002013-07-01T14:04:30.579-04:00《送别》原歌曲为美国人<a href="http://en.wikipedia.org/wiki/John_P._Ordway">John P. Ordway</a>于1851年所作《Dreaming of Home and Mother》。后来有日本人犬童球溪的《旅愁》和中华人沈心工的《昨夜梦》,为其填词;而在中华最为著名的是李叔同的《送别》:<br />
<blockquote>
长亭外,古道边,芳草碧连天。<br />
晚风拂柳笛声残,夕阳山外山。<br />
天之涯,地之角,知交半零落。<br />
一觚浊酒尽余欢,今宵别梦寒。<br />
长亭外,古道边,芳草碧连天。<br />
晚风拂柳笛声残,夕阳山外山。</blockquote>
参见<a href="http://fzhjsh.bokee.com/2070953.html">法正居士《李叔同《送别》版本考 》</a>。<div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-71090090264208068752013-06-29T17:20:00.001-04:002016-02-01T18:12:49.122-05:00简化ssh登录ssh登录服务器,每次输入一长串服务器名、帐户、口令很烦琐,可以简化登录指令。用例:服务器:dahuilang.net;帐户:tuzi。<br />
<br />
首先,使用ssh-keygen建立密钥,参见:<a href="http://venturor.blogspot.ca/2008/05/ssh-keygen.html">http://venturor.blogspot.ca/2008/05/ssh-keygen.html</a>。然后,编辑~/.ssh/config,添加以下内容:<br />
<blockquote>
Host dahuilang<br />
HostName dahuilang.net<br />
User tuzi<br />
IdentityFile ~/.ssh/id_rsa # “~/.ssh/id_rsa”为默认文件,若使用此默认文件,则可忽略该项</blockquote>
<br />
登录指令:<br />
<blockquote>
$ ssh dahuilang</blockquote>
<div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-87747788708833798442013-05-29T21:48:00.003-04:002013-05-29T21:48:54.151-04:00叫debian squeeze自动挂载usb移动硬盘刚做了个usb移动硬盘,却不能被自动挂载。原来是用户权限作祟:<br />System > Administration > Users and Groups > Advanced Settings,选择Mount user-space file systems (FUSE)。<br />
<br /><div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-6528352141296601662013-04-30T22:41:00.000-04:002013-04-30T22:42:47.381-04:00勇敢地活“活着”绝对是个技术活,这么说有点匠气,应该说“活着”绝对是门艺术。“生之徒,十有三;死之徒,十有三;人之生,动之于死地,亦十有三。”这是老祖宗们的见识,能活到老的也就三成,还毋庸将活着的质量考虑在内。老人的话说:“活着就好。”想把“活着”这门艺术玩好,不光需要智慧,更需要勇气。<br />
<br />
活着就需要勇气,许多人对此不以为然。人生之不如意,十之八九,说的是“活着”是门叫人憋屈的艺术,跟练柔术的差不多,好端端一个人能给塞到马桶里去。既然活着憋屈,天长日久势必影响心境,妨害健康,到了就“活不着”了。所以,要想活着,就得跟憋屈作斗争。<br />
<br />
咋斗争?就得有胆气对憋屈的事说不。别以为这是件轻而易举的买卖,这世上目空一切憋屈的狂徒不是没有,但大多数人还不是有着理性的凡夫俗子不是。作为有理性的凡夫俗子能轻而易举地忽略晃在眼么前层出不穷的憋屈?不是的。<br />
<br />
好比被人载了赃的清白人,在讨还得清白之前都会经历由是非之人造成的憋屈?但憋屈的时间长短将早就“活着”的艺术大师和“活不着”的废物点心。大师们经历短时阵痛后就会勇敢地面对现实,而不是跟废物般萎缩地接受它。不是污俺栽赃么,哎,那清白俺还不要了,那赃俺也纳了,明日拿去置地添产,使劲盘剥那些个叫俺憋屈的废柴。没有胆量的懦夫是断不能做出此等伟业的,他们只会将憋屈进行到底,最有可能的结局是末了清白没讨回来,人先憋屈死了。<br />
<br />
作为凡夫俗子,有了理性,还得靠胆气才能将窝心事变成开心事,化憋屈为力量。得勇敢地活。<br />
<br /><div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-74719946441571652782013-04-30T21:46:00.002-04:002013-04-30T21:47:48.385-04:00三大信用管理公司活在寅吃卯粮的年代,免不了向金融机构证明自己不是个赖皮,自己说了不算,得由信用管理公司做中介才成。世界三大信用管理公司:<a href="http://equifax.com/" target="_blank">equifax</a>,<a href="http://experianplc.com/" target="_blank">experian</a>,<a href="http://transunion.com/" target="_blank">transunion</a>。<div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-59965924170396673872013-04-18T12:03:00.004-04:002013-04-18T12:03:36.644-04:00the cat command examplessee here for some examples of `cat' command:<br />
<a href="http://www.cyberciti.biz/faq/linux-unix-appleosx-bsd-cat-command-examples/">http://www.cyberciti.biz/faq/linux-unix-appleosx-bsd-cat-command-examples/</a><div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-86642907401431944772013-04-09T12:35:00.002-04:002013-04-09T12:35:20.940-04:00convert image to pdf<blockquote>
$ convert -compress LosslessJPEG -quality 100 foo.jpg foo.pdf</blockquote>
`convert' is a member tool of `imagemagick'.<br />
to show the `compress' types:<br />
<blockquote>
$ convert -list compress</blockquote>
<div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-66148215064453754892013-03-29T12:46:00.000-04:002013-03-29T12:46:23.912-04:00inserting a pdf doc into another oneuse `pdftk' to do pdf insertion operation. for example, insert pdf doc `small.pdf', 4 pages, into `big.pdf' between page 16 and 21:<br />
<blockquote>
$ pdftk A=big.pdf B=small.pdf cat A1-16 B A21-end output bigger.pdf</blockquote>
<div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-86900364076850730582013-03-14T18:20:00.002-04:002013-03-14T18:20:59.603-04:00linux clockthere are 2 timepieces in a linux box: hardware and system (i.e. software).<br />
<br />
to see hardware clock:<br />
<blockquote>
$ hwclock</blockquote>
to see system clock:<br />
<blockquote>
$ date</blockquote>
generally, the two clocks are not holding the same time value. to synchronize them, normally adjust the system clock firstly and then set the hardware clock according to the system clock time:<br />
<blockquote>
$ date +%T -s '18:12:56'<br />
$ hwclock --systohc</blockquote>
<br /><div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-29097054954598008482013-03-10T14:23:00.003-04:002013-03-10T14:23:30.419-04:00kill a process treekill the process 1024 and all its sub-processes:<br />
<blockquote>
$ kill -- -1024</blockquote>
`--' prevents a normal argument that starts with a `-' from being interpreted as a switch. see: <a href="http://stackoverflow.com/questions/392022/best-way-to-kill-all-child-processes">http://stackoverflow.com/questions/392022/best-way-to-kill-all-child-processes</a><div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-4596272939506136352013-03-06T17:01:00.002-05:002013-03-06T17:01:46.312-05:00config gtask chrome extension context menuremove google gtask context menu entry in chrome browsers (debian):<br />
<blockquote class="tr_bq">
$ cd .config/google-chrome/Default/Extensions/dmglolhoplikcoamfgjgammjbgchgjdd/1.0_0/<br />$ mv menus.js menus.js.bak</blockquote>
do not forget restart your chrome.<div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0tag:blogger.com,1999:blog-4349883785856834406.post-85329975870836135542012-10-23T12:11:00.002-04:002012-10-23T12:11:45.557-04:00a drawback of functional programming<span style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;">After having posted a question on implementing </span><b style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;">functional</b><span style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;"> graph depth-first search, I did some investigations seriously. My finding is that </span><b style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;">functional programming</b><span style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;"> suffers from handling the </span><b style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;">popular</b><span style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;"> </span><i style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;">graph algorithms</i><span style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;">.</span><br style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;" /><br style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;" /><span style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;">People with purely functional favour have to treat graph in a distinct way from the </span><b style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;">normal</b><span style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;"> literature. That's the motivation of pushing guys to generate the following works:</span><br />
<ul>
<li><i style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;">functional graph algorithms with depth-first search</i></li>
<li><i style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;">graph algorithm lazy functional programming language</i></li>
<li><i style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;">inductive graphs and functional graph algorithms</i></li>
<li><i style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;">purely functional data structures</i></li>
<li><i style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;">graph algorithms with a functional flavour</i></li>
</ul>
<br style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;" /><b style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;">`Graph algorithms have long been a challenge to program in a pure functional language. Previous attempts have either tended to be unreadable, or have failed to achieve standard asymptotic complexity measures.'</b><br style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;" /><s style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;">-</s><i style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;">John Launchbury. 1995. Graph Algorithms with a Functional Flavous. In Advanced Functional Programming, First International Spring School on Advanced Functional Programming Techniques-Tutorial Text, Johan Jeuring and Erik Meijer (Eds.). Springer-Verlag, London, UK, 308-331.</i><br />
<i style="background-color: white; font-family: arial, sans-serif; font-size: 13.333333015441895px; line-height: 12px;"><br /></i><div class="blogger-post-footer">All my words on this blog are treated as `program' licensed under GPL.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
You should have received a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses.</div>Anonymoushttp://www.blogger.com/profile/09118109916964096210noreply@blogger.com0