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How to escape os.system() calls?
When using os.system() it's often necessary to escape filenames and other arguments passed as parameters to commands. How can I do this? Preferably something that would work on multiple operating systems/shells but in particular for bash.
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AI助手生成代码编译apk报错 - AI 助手 - 清泛IT社区，为创新赋能！
...6496000-0\youngandroidproject\..\build\intermediates\res\merged\layout\abc_alert_dialog_button_bar_material.xml: note: using v22 attributes; synthesizing resource appinventor.ai_18721201607.BLtalka:layout/abc_alert_dialog_button_bar_material for configuration v22.
D:\ChineseAppInventor\resources\app...
How far can memory leaks go?
... to accept connections may take minutes to become free, even if properly closed by the program. A networked program may also hold remote resources such as database objects. The remote system should free those resources when the network connection is lost, but it may take even longer than the local o...
How to remove files and directories quickly via terminal (bash shell) [closed]
...rm -rf.
Also note that what you're learning applies to bash on every Unix OS: OS X, Linux, FreeBSD, etc. In fact, rm's syntax is the same in pretty much every shell on every Unix OS. OS X, under the hood, is really a BSD Unix system.
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How are everyday machines programmed?
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Most of what you're talking about are embedded based systems where C is a luxury often not available. They don't have software in the traditional sense. Most of the time the software is written in C, assembly, or even machin...
What is the common header format of Python files?
...houd be #!/usr/bin/env python. This makes it possible to run the file as a script invoking the interpreter implicitly, e.g. in a CGI context.
Next should be the docstring with a description. If the description is long, the first line should be a short summary that makes sense on its own, separated f...
Random hash in Python
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I would've used os.urandom because wanting an MD5 hash might mean wanting a secure one.
– Unknown
Jun 11 '09 at 22:58
9
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Measure time in Linux - time vs clock vs getrusage vs clock_gettime vs gettimeofday vs timespec_get?
... what the relevant properties are that we're looking for. Looking at your post, I suggest:
What time is measured by the clock? (real, user, system, or, hopefully not, wall-clock?)
What is the precision of the clock? (s, ms, µs, or faster?)
After how much time does the clock wrap around? Or is the...
Switch statement for greater-than/less-than
... scrollleft = 1000;
switch (true)
{
case (scrollleft > 1000):
alert('gt');
break;
case (scrollleft <= 1000):
alert('lt');
break;
}
Demo: http://jsfiddle.net/UWYzr/
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Parse config files, environment, and command-line arguments, to get a single collection of options
...iguration file parsing ( configparser ), environment variable reading ( os.environ ), and command-line argument parsing ( argparse ). I want to write a program that does all those, and also:
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