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How can I check if a command exists in a shell script? [duplicate]
...to your if clause. According to my tests (https://www.topbug.net/blog/2016/10/11/speed-test-check-the-existence-of-a-command-in-bash-and-zsh/), the 1st and 3rd method are recommended in bash and the 5th method is recommended in zsh in terms of speed.
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How do I use DateTime.TryParse with a Nullable?
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edited May 31 '10 at 9:26
Drew Noakes
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Using emit vs calling a signal as if it's a regular function in Qt
...o -1.
– Christian Rau
Apr 15 '12 at 10:22
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disable the swipe gesture that opens the navigation drawer in android
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Tran HieuTran Hieu
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Lambda capture as const reference?
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answered Sep 22 '10 at 19:40
Steve MSteve M
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Insert a line at specific line number with sed or awk
...d then use this with gsed
– cwd
Jan 10 '15 at 17:58
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This is super useful! Is there anyway for m...
How to return a part of an array in Ruby?
..."b", "c", "d" ]
a[4..7] #=> [ "e" ]
a[6..10] #=> nil
a[-3, 3] #=> [ "c", "d", "e" ]
# special cases
a[5] #=> nil
a[6, 1] #=> nil
a[5, 1] #...
Is there an easy way to add a border to the top and bottom of an Android View?
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answered Nov 30 '10 at 11:43
EmileEmile
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How to store a list in a column of a database table
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edited Jun 18 '10 at 14:52
answered Jun 18 '10 at 14:25
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nginx missing sites-available directory
... apply to Nginx as well.
– SenG
Nov 10 '15 at 1:30
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a little surprised no one has suggested to i...