root@ns# find / -name "show" -print
root@ns# show
-bash: show: command not found
root@ns# echo $PATH 
/netscaler:/bin:/sbin:/usr/bin:/usr/sbin:/usr/libexec:/usr/local/bin:/usr/local/sbin:.
root@ns# grep -ri show $PATH
grep: /netscaler:/bin:/sbin:/usr/bin:/usr/sbin:/usr/libexec:/usr/local/bin:/usr/local/sbin:.: No such file or directory
root@ns#