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How to retrieve a user environment variable in CMake (Windows)
...command line prompt after you change the user settings.
The equivalent in Unix/Linux is adding a line to your .bash_rc: you need to start a new shell to get the values.
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Looking for files NOT owned by someone
...can have ${cmdhere} operate on each file in parallel. cmdhere ::= standard unix utils; standard unix utils ::= chmod, chown, stat, ls, ...
– Dwight Spencer
Mar 4 '14 at 7:12
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bower command not found
...estion (npm global path prefix) all you need is to set proper npm prefix.
UNIX:
$ npm config set prefix /usr/local
$ npm install -g bower
$ which bower
>> /usr/local/bin/bower
Windows ans NVM:
$ npm config set prefix /c/Users/xxxxxxx/AppData/Roaming/nvm/v8.9.2
$ npm install -g bower
Th...
In Python, how do you convert seconds since epoch to a `datetime` object?
...mp(timestamp) fail on windows for dates before Jan. 1, 1970 while negative unix timestamps seem to work on unix-based platforms. The docs say this:
"This may raise ValueError, if the timestamp is out of the range of
values supported by the platform C gmtime() function. It’s common for
this...
How to set environment variables in Python?
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@Evan There might be some historical variants of Unix that don't support putenv(), but for those Unixen there is nothing you can do anyway. Even old version of AIX and HPUX I worked with did support it. If anyone is actually able to find a computer not supporting it toda...
How to check if a python module exists without importing it
...y thoughts for the ones coming after me and looking for the same:
Linux/UNIX script file method: make a file module_help.py:
#!/usr/bin/env python
help('modules')
Then make sure it's executable: chmod u+x module_help.py
And call it with a pipe to grep:
./module_help.py | grep module_nam...
Mac OSX Lion DNS lookup order [closed]
...ht still be an issue in some cases.
Make sure your /etc/hosts file is a unix style text file, with linefeeds as the ending rather than cr's.
Editing with TextWrangler or a unix text editor should preserve the file.
If your file is already messed up, try this to fix
tr '\015' '\012' < /etc...
How to obtain the number of CPUs/cores in Linux from the command line?
...ROCESSORS_CONF are not required by standards, but are provided on numerous unix platforms and documented as optional by Open Group."
– BCran
Oct 4 '15 at 20:36
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What is the meaning of prepended double colon “::”?
...pace "tree".
Contrasting with such absolute paths, you can configure good UNIX shells (e.g. zsh) to resolve relative paths under your current directory or any element in your PATH environment variable, so if PATH=/usr/bin:/usr/local/bin, and you were "in" /tmp, then...
X11/xterm
...would happily...
What is the proper #include for the function 'sleep()'?
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sleep is a non-standard function.
On UNIX, you shall include <unistd.h>.
On MS-Windows, Sleep is rather from <windows.h>.
In every case, check the documentation.
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