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How do I check the operating system in Python?
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Thanks. What's the difference between linux and linux2 ?
– Tharindu Rusira
Sep 5 '13 at 2:03
1
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Design patterns or best practices for shell scripts [closed]
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I wrote quite complex shell scripts and my first suggestion is "don't". The reason is that is fairly easy to make a small mistake that hinders your script, or even make it dangerous.
That said, I don't have other resources to pass you but my personal experienc...
How to get the start time of a long-running Linux process?
... that ps will report the date (not the time) if it wasn't started today, and only the year if it wasn't started this year. Is the precision lost forever for old processes?
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character showing up in files. How to remove them?
I am doing compressing of JavaScript files and the compressor is complaining that my files have  character in them.
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Convert HH:MM:SS string to seconds only in javascript
...perator to convert numeric string to number is not a good idea. It's short and looks "clever", but it's confusing and not clean code. Use parseInt(x, 10) instead. And avoid one-liner. Also prevent errors by undefined input. For example: it's not a string, has no ":" or only "HH:MM". etc.
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How to redirect output of an already running process [duplicate]
Normally I would start a command like
5 Answers
5
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Why is using “for…in” for array iteration a bad idea?
...5;
for (var x in a) {
// Shows only the explicitly set index of "5", and ignores 0-4
console.log(x);
}
/* Will display:
5
*/
Also consider that JavaScript libraries might do things like this, which will affect any array you create:
// Somewhere deep in your JavaScript...
Error: The 'brew link' step did not complete successfully
...ed to me when I missed the homebrew package's message about removing the standalone version first.
Assuming, like me, you've already broken node/npm by attempting the upgrade before knowing to npm uninstall npm -g first, you can rm -rf /usr/local/lib/node_modules/npm and then brew link node. This ...
Perform an action in every sub-directory using Bash
... # your processing here
fi
done
Or, if your action is a single command, this is more concise:
for D in *; do [ -d "${D}" ] && my_command; done
Or an even more concise version (thanks @enzotib). Note that in this version each value of D will have a trailing slash:
for D in */; do ...
Windbg Step 2 分析程序堆栈实战 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...内容是什么，这个时候，建议你用dc(display double-word values and ASCII characters)命令查看内存。
dc 000d1b90
000d1b90 000d1b9c 000d1be8 00000000 003a0045 ............E.:.
000d1ba0 0050005c 006f0072 0061004c 005c0062 \.P.r.o.L.a.b.\.
000d1bb0 00690057 0064006e 0067006...