permission script

[Eugeneapolinary Ju]

I just wrote a little script, that will echo a message to the user, if it doesn't have enough permission:

$ if ! [ "$(env LC_MESSAGES=C ifconfig wlan0 down | grep -i denied)" == "" ]; then echo "no permission"; fi
SIOCSIFFLAGS: Permission denied
$ sudo su
[sudo] password for USER: 
# if ! [ "$(env LC_MESSAGES=C ifconfig wlan0 down | grep -i denied)" == "" ]; then echo "no permission"; fi
# 

but it won't works

why?



      
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