How to check installed program in system?

gmitra · 01-30-2005, 12:55 PM

Hello,
I need a simple script to check if program has been already installed
in system. How can I do it? I lost in complicated, for me, configure
files

Thanks.

acid_kewpie · 01-30-2005, 02:04 PM

just see if it exists.... isn't that good enough? check, say, the return code from "which programname".

Code:

kermit root # which pants
which: no pants in (/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:[...]:/usr/qt/3/bin)
kermit root # echo $?
1
kermit root # which bash
/bin/bash
kermit root # echo $?
0

gmitra · 01-30-2005, 03:22 PM

Thanks!