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Alix Axel
Asked: 2013-01-28 03:54:32 +0800 CST

Bash - Get Sudoer Username?

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Say I have the following bash script:

#!/bin/bash

echo $( whoami )

This is what it outputs with and without sudo:

alix@netbook:~$ ./test.sh 
alix
alix@netbook:~$ sudo ./test.sh 
root

The script executes several commands that require superuser priviledges, but I also want to add the original executing user to a group. Is there any command that returns alix if I run sudo ./test.sh?

command-line

1 Answers

  1. Found the solution in a related answer:

    #!/bin/bash

echo $( whoami )
echo $SUDO_USER

    And the output:

    alix@netbook:~$ ./test.sh 
alix

alix@netbook:~$ sudo ./test.sh 
root
alix
    • 5