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 > You are highlighting the real flexibility of Linux (and Unix). From you were told you could create a command to do this in just a few minutes. For things like this writing your program is so trivial that it is not considered worthwhile to have a program to do it. For example one of the first things a do when installing version of Linux is to create a command called inst to do: rpm -qa |grep <rpm name> -- ======================================================================= The meek shall inherit the earth; but by that time there won't be anything left worth inheriting. ======================================================================= Aaron Konstam telephone: (210) 656-0355 e-mail: akonstam@xxxxxxxxxxxxx
