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Run cron job only if it isn't already running
...'s just a shell script:
#!/bin/sh
if ps -ef | grep -v grep | grep doctype.php ; then
exit 0
else
/home/user/bin/doctype.php >> /home/user/bin/spooler.log &
#mailing program
/home/user/bin/simplemail.php "Print spooler was not running... Restarted."
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一个科技公司只是碰巧卖起了披萨？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...擎。无论达美乐将来想去卖汉堡还是卖卷饼，貌似都不成问题。
善用社交媒体进行病毒传播
达美乐不仅用科技手段在提升用户订餐体验上受益匪浅，更在消费最活跃的社交媒体上给自己铺了一条金光大道：它经常在社交媒体...
How to check if an object is a list or tuple (but not string)?
...
Python with PHP flavor:
def is_array(var):
return isinstance(var, (list, tuple))
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WordPress is giving me 404 page not found for all pages except the homepage
...ermalinks which should be : http://yoursite.com/wp-admin/options-permalink.php
Choose Default permalink setting, then save changes
Then you can return it again to your other previous permalink choice or keep it as default as yo wish
Note that this problem can happen when you move your site from ...
地图组件做App到底怎么选？我踩完6个坑，帮你总结了这份横评 - App应用开发...
...门开了Android Studio项目，配了高德SDK，写了半天Gradle依赖问题都没解决……对于AI2的目标用户来说，原生开发的门槛太高了，完全失去了"积木编程"的意义。
方案D是个坑。 听起来很美好——"我前端很熟，用Leaflet十...
Determine the line of code that causes a segmentation fault?
...nuces - Google around. For Arch Linux, read this wiki.archlinux.org/index.php/Core_dump
– Mawg says reinstate Monica
Jan 24 '17 at 16:35
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GPU Emulator for CUDA programming without the hardware [closed]
...celot/
[2]: Ocelot Interactive Debugger - http://forums.nvidia.com/index.php?showtopic=174820
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How can I put strings in an array, split by new line?
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Instead of \n you can use the predefined constant PHP_EOL.
– Tim
Jul 19 '12 at 14:58
41
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Wolfram's Rule 34 in XKCD [closed]
...d with these unique CA:
http://lucasoman.com/files/projects/caeditor/caed.php
As you can see by playing with it, you can randomly toggle any block, which alters every
block below it according to the rules. It's kind of a neat way to see the chain reaction
caused by aberrations in the process.
H...
How do I get the current date in JavaScript?
... moment as if it were a language. Mine here uses the same common format as PHP: date.
Quick Links
Date.format.min.js 5.08 KB
dateFormat.min.js 4.16 KB
Flavor 1 new Date().format(String)
My Personal Fav. I know the taboo but works great on the Date Object. Just be aware of any other mods yo...