On Tue, May 06, 2008 at 01:29:13PM -0600, Bob Proulx wrote:
> Poor Yorick wrote:
> > Looking for a simple ways to output the index at which two strings
> > differ. Here is one:
> >
> > cmp <(echo "hello") <(echo "help") | cut -d' ' -f5 | tr -d ,
> >
> > Any other suggestions?
You could use substring expansion to compare characters one by one.
#!/bin/bash
a=$1
b=$2
if [[ "$a" == "$b" ]]
then
echo "'$a' and '$b' are the same"
else
i=0
while [[ "${a:$i:1}" == "${b:$i:1}" ]]
do
let i++
done
let i++
echo "'$a' and '$b' differ in character $i"
fi
--
Mike Stroyan <[EMAIL PROTECTED]>
