I would like to know how to truncate a string in bash shell script? Thanks.
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by: ecwPosted on 2003-03-25 at 08:25:22ID: 8203912
To strip off a known part,
${var%pattern} # shortest match
or ${var%%pattern} # longest match
Where pattern is a valid filename expansion pattern eg.
var=main.c.old
echo ${var%.*} ${var%%.*}
While output
main.c main
To get the first (for example 10) chars of a var
var=`echo $var | cut -c -10`
or var =`expr substr 1 10 $var`