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Appending a line to a file only if it does not already exist
... '};:F;s/.*mkhomedir.*/session\trequired\tpam_mkhomedir.so umask=0022/g;' /etc/pam.d/common-session
– bgStack15
May 31 '16 at 16:01
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Install tkinter for Python
...tory - and it should work. It worked for me - and I can now import Tkinter etc to my heart's content - yipidy-yay. An entire afternoon spent on this - hope this note saves others from the pain.
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How to discover number of *logical* cores on Mac OS X?
...et "error: "hw.ncpu" is an unknown key". There is no cpu related entry in /etc/sysctl.conf as well. Frozen Flame's answer worked.
– TheGT
Oct 5 '16 at 23:39
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No startswith,endswith functions in Go?
...to findout: why aren't there standard functions like startswith, endswith, etc as part of the standard libraries in the Go programming language?
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Why do I get a warning icon when I add a reference to an MEF plugin project?
...I tried cleaning, rebuilding, removing and readding the project reference, etc... with no success. Finally, quitting Visual Studio and reopening resolved the issue.
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How can I get Docker Linux container information from within the container itself?
...be the short container id in Docker 1.12
root@d2258e6dec11:/project# cat /etc/hostname
d2258e6dec11
Externally
$ docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
d2258e6dec11 300518d26271...
Choosing a Windows automation scripting language. AutoIt vs Autohotkey [closed]
..., an editor that understands not only the syntax but supports F1 for help, etc. They have plenty of code samples.
I don't have any first hand experience with AutoHotKey - I do remember considering it, but I've never looked back since using AutoIt.
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Fastest method to escape HTML tags as HTML entities?
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but does this lose white space etc.
– Andrew
Jan 14 '18 at 19:41
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How to diff a commit with its parent?
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git diff 15dc8 15dce~1
~1 means 'parent', ~2 'grandparent, etc.
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What is pip's equivalent of `npm install package --save-dev`?
...e to use) it can handle many files and environments(test, dev, production, etc. ). It also has command to upgrade all/any of your dependencies.
installation
pipm install pkg-name
installation as development dependency
pipm install pkg-name --dev
installation as testing dependency
pipm install...