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Old 05-27-2012, 06:34 AM   #1
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Registered: May 2012
Posts: 8

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Code to ensure script runner is root user


I just need a code fragment with checks if the user is the root user.

Basically I need to ensure it was run as "sudo myscript" rather then just "myscript"

I found

if [ "$USER" != "root" ]; then 
    echo "You are not root user, please log in as root user"
But that didn't work. I thought maybe it was because I had not defined the variable $USER and I wasn't sure how to.

Any help will be appreciated.
Old 05-27-2012, 06:43 AM   #2
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Registered: Oct 2009
Location: Wroclaw, Poland
Distribution: Arch, Kubuntu
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You can use "id" program, like that:
if [ $(id -ur) != 0 ]; then 
    echo "You are not root user, please log in as root user"
Old 05-27-2012, 09:21 AM   #3
Registered: Jul 2009
Distribution: Slackware
Posts: 116

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Why not just set the execute permissions so that only root can run the script?


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