strip version from package name using Bash
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by cd1
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Published on 2010-05-24T17:44:15Z
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2010/05/24
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hi,
I'm trying to strip the version out of a package name using only Bash. I have one solution but I don't think that's the best one available, so I'd like to know if there's a better way to do it. by better I mean cleaner, easier to understand.
suppose I have the string "my-program-1.0" and I want only "my-program". my current solution is:
#!/bin/bash
PROGRAM_FULL="my-program-1.0"
INDEX_OF_LAST_CHARACTER=`awk '{print match($0, "[A-Za-z0-9]-[0-9]")} <<< $PROGRAM_FULL`
PROGRAM_NAME=`cut -c -$INDEX_OF_LAST_CHARACTER <<< $PROGRAM_FULL`
actually, the "package name" syntax is an RPM file name, if it matters.
thanks!
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