Why can't I use 'sudo su' within a shell script? How to make a shell script run with sudo automatically

Question

I cannot figure out what\'s wrong with this. When I run it in terminal and enter password, nothing happens, but if I run every command separately in terminal, it works. Than

Answer 1

sudo su will attempt to start a new shell as root. Once that new shell is opened, the original script will not continue until the new shell is closed.

For a fix try:

In the shell script try:

su  -c "my command"

So if the user was "userA":

su userA -c "mkdir /opt/D3GO/"

However, if you are userA for example and you want to run the part of script as root, you will be prompted for a pass.

su root -c "mkdir /opt/D3GO/"

You can also get around that by just running the script with sudo in the first place

sudo ./myScript.sh

That way the script retains the original user inside the script which you can access using the standard variables like ${USERNAME}, ${UID} etc

Depends on what works better for you.