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40 lines
1.0 KiB
40 lines
1.0 KiB
BashTricks. I always forget how to do this, and I'm sick of looking it up for that once every two months when I need it.
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* [http://partmaps.org/era/unix/award.html useless use of cat award]
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* http://db.ilug-bom.org.in/Documentation/abs-guide/loops1.html
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* http://anton.lr2.com/archives/2005/03/24/using-a-bash-for-loop-to-wget/ - Slurp up some of this info.
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for arg in [list]
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do
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command...
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done
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Don't feel like you have to string this all together on one line when you're doing it in an interactive shell. Just hit enter after each line.
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To steal an example:
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for planet in "Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto"
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do
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echo $planet
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done
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Note that [list] can be the output of a given program - just use backticks, like so:
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for doc in `ls *.doc`
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do
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file $doc
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done
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A real world example:
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for release in `ls`
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do
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iconv -f iso-8859-1 -t utf-8 ./$release ../converted/$release.html
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done
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You probably should use globs instead, though:
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for release in *
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do
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foo ./$release
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done
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