Re: Looking for command to compare two strings

On Sat, 2006-12-02 at 14:31 +0000, Paul Smith wrote:
On 12/2/06, Andy Green <andy@xxxxxxxxxxx> wrote:
Is there some command to automatically check whether the two following
strings are equal?

e64829764ecc434be937d92ab3a00f57
e64829764ecc434bg937d92ab3a00f57

[b]ash can do it easily enough, eg save this as say isequal

#!/bin/sh

if [ "$1" = "$2" ] ; then echo "same" ; else echo "different" ; fi


make sure you

chmod +x isequal

then you can go, eg

./isequal e64829764ecc434be937d92ab3a00f57 e64829764ecc434bg937d92ab3a00f57

You can use the guts of the script from the commandline, even better

if [ "`md5sum $1`" = "`md5sum $2`" ] ; then echo "same" ; else echo
"different" ; fi

Thanks, Andy. Is not there a native Linux command to compare strings?

Paul

It can be done from command line.
$ STR1="hello" ; STR2="world" ; if [ "$STR1" == "$STR2" ]; then echo
Match; else echo No match; fi
No match.
$ STR1="hello" ; STR2="hello" ; if [ "$STR1" == "$STR2" ]; then echo
Match; else echo No match; fi
Match

- Gilboa



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