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Test for non-zero length string in Bash: [ -n “$var” ] or [ “$var” ]
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+100
Edit: This is a more complete version that shows more differences between [ (aka test) and [[.
The following table shows that wheth...
How to get first N elements of a list in C#?
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I believe this answer is useful even now, 10 years and many C# versions later. For the specific case where you have a list. Especially if you are skipping many items. E.g. you have a list of one million items, and you want a slice of 5 of them, far into the list. Get...
Check folder size in Bash
...a script that will calculate a directory size and if the size is less than 10GB, and greater then 2GB do some action. Where do I need to mention my folder name?
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Why is “Set as Startup” option stored in the suo file and not the sln file?
... should it be a non-user-specific preference?
If I've got a solution with 10 files in, and one developer is primarily testing/using one of those tools, why should that affect what I start up?
I think MS made the right choice on this one. The project I want to start is far from necessarily the proj...
Get the IP address of the machine
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104
I found the ioctl solution problematic on os x (which is POSIX compliant so should be similiar...
Retrieve column names from java.sql.ResultSet
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answered Sep 29 '10 at 4:24
CyntechCyntech
4,98555 gold badges2828 silver badges4747 bronze badges
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Concatenating null strings in Java [duplicate]
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answered Nov 23 '10 at 20:49
Mark PetersMark Peters
74k1313 gold badges149149 silver badges184184 bronze badges
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How can I use “:” as an AWK field separator?
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answered Apr 9 '10 at 17:33
Jürgen HötzelJürgen Hötzel
15.6k33 gold badges3636 silver badges5555 bronze badges
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Calling shell functions with xargs
...the function should do it (untested):
export -f echo_var
seq -f "n%04g" 1 100 | xargs -n 1 -P 10 -I {} bash -c 'echo_var "$@"' _ {}
You can use the builtin printf instead of the external seq:
printf "n%04g\n" {1..100} | xargs -n 1 -P 10 -I {} bash -c 'echo_var "$@"' _ {}
Also, using return 0 a...
How to revert a Git Submodule pointer to the commit stored in the containing repository?
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edited Sep 15 at 1:10
answered Oct 24 '11 at 23:28
B...