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How to test if part of a string matches?

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# 15  
Old 10-18-2009
Thank you for all your help Scrutinzer. Here is the code I used:
Code:
#!/bin/sh
name="backup-091017-112436"

if [ "${name%-[0-9][0-9][0-1][0-9][0-3][0-9]-[0-2][0-9][0-6][0-9][0-6][0-9]}" = "backup" ]
then
	echo name is a backup
else
	echo name is not a backup
fi

# 16  
Old 10-18-2009
Great, not much can go wrong with such a tight match. If there is no variation in file names and they are always backup-yymmdd-hhmmss anyway, you could get away with:
Code:
${name%-*-*}

or
Code:
${name%%-*}
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