Find Argv[i] in /bin and /sbin Post: 303036618

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Top Forums Programming Find Argv[i] in /bin and /sbin Post 303036618 by jim mcnamara on Thursday 4th of July 2019 09:34:12 PM

07-04-2019

Registered User

What you want is the equivalent of the which command - it uses the PATH variable to decide where to look.

Code:

#!/bin/bash
# usage: ./check executable_name_goes_here
# 
export PATH=/bin:/usr/bin:/usr/sbin

/usr/bin/which  "$1" 

exit

change whatever you need to make this work for you.
You do NOT want to duplicate a correct which command, it is a lot of work. If you want to learn instead: download Linux coreutils - google for your UNIX flavor. Then read the source. PS: realpath() is the heart of the which command.

jim mcnamara

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