I'm writing a shell script, that needs to be run with root privileges.
I can check if a user has root privileges with
sudo -nv || echo "no sudo", but that doesn't help me, if his credentials are still cached by
sudo, but he didn't call my script with it. So I have no way of reacting to a user, not calling my script with sudo.
I could put
sudo in front of every command that needs it, so just checking to see if the user has root privileges would be enough, but it seems to me, that there should be a better solution.
I'm looking for a command, that I can put into my script, that asks the user for root privileges and, if provided, executes the rest of the script, as if the user called it with root privileges in the first place.
What I want:
#!/bin/bash if ! command; then # what I'm looking for echo "This script needs root privileges." exit 1 fi mv /bin/cmd1 /bin/cmd2 # requires root
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