大约有 2,162 项符合查询结果（耗时：0.0294秒） [XML]
How to call an external command?
How do you call an external command (as if I'd typed it at the Unix shell or Windows command prompt) from within a Python script?
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How does password salt help against a rainbow table attack?
...alt she would have to precompute 100,000 hashes. Even with the traditional UNIX salt of 2 characters (each is one of 64 choices: [a–zA–Z0–9./]) she would have to compute and store 4,096,000,000 hashes... quite an improvement.
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How do I parse command line arguments in Bash?
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It can handle multiple single options like -vf filename in the typical Unix way, automatically.
The disadvantage of getopts is that it can only handle short options (-h, not --help) without additional code.
There is a getopts tutorial which explains what all of the syntax and variables mean. ...
Parsing command-line arguments in C?
... otherwise 1 (or EXIT_FAILURE). Having such a function simplifies writing Unix-style 'filter' programs that read files specified on the command line or standard input.
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What does “1 line adds whitespace errors” mean when applying a patch?
...similar situation when the line endings are Windows style CRLFs instead of Unix ones.
– Ezequiel Muns
Oct 2 '13 at 7:39
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Casperjs/PhantomJs vs Selenium
...using PhantomJS as the WebDriver implementation) via your CI on a headless Unix server on every check-in. Then if you want to test browser compatibility you can run your tests locally by changing the underlying WebDriver implementation to Chrome, Firefox etc.
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How can I color Python logging output?
...hat people are copy/pasting :-(. My stream handler currently only works on UNIX (Linux, Mac OS X) but the advantage is that it's available on PyPI (and GitHub) and it's dead simple to use. It also has a Vim syntax mode :-). In the future I might extend it to work on Windows.
To install the package:...
Verify a certificate chain using openssl verify
...ded intermediate certificates and cat them together into a single file (on Unix). On Windows you can just open a text editor (like notepad.exe) and paste the certificates into the file, the first needed on top and following the others.
There is another thing. The files need to be in PEM format. ...
The difference between fork(), vfork(), exec() and clone()
...rocess. This system call with fork() system call together form a classical UNIX process management model called "fork-and-exec".
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Shell equality operators (=, ==, -eq)
...(( 1==1 )); echo $?
0
$ (( 1==2 )); echo $?
1
(Note: 0 means true in the Unix sense and non zero is a failed test)
Using -eq inside of double parenthesis is a syntax error.
If you are using [...] (or single brace) or [[...]] (or double brace), or test you can use one of -eq, -ne, -lt, -le, -gt, ...