Purpose

This is a handy project to regain access to your PLC in case you can
access it with CODESYS, but not via the Linux Shell. You can execute
virtually every Linux Shell command, right from the PLC Shell.

Usage

• Download the project to your PLC.
• Open the PLC Shell
• Enter 'LinuxShell ' (e.g.: LinuxShell ls /etc)

I just used it to reset my password:

LinuxShell echo 'myuser:mypassword' | chpasswd