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Bash Check Username of User Running Script
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| if [ "$(whoami)" != "username" ]; then | |
| echo "Script must be run as user: username" | |
| exit 255 | |
| fi |
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NOte, one of the sublt things with sudo and looking at environment variables in one line.
(root) $ sudo -u someuser echo ${USER}root
Will always return 'root' since it ${USER} is value substituted before the call to sudo.
However, if you escape the $ symbol and pass the statement instead of value.
(root) $ sudo -u someuser bash -c "echo \${USER}"someuser
Will more likely return what you intended.