On init runlevel 3, when we type "login", it shows the login prompt and undergoes the normal login process.

I want to write a script that would do invoke the login command when certain conditions happen. So typically, on bash shell script, I tried using "login" on my script. The problem with this is that when i try to run the script, the script stops responding, and I usually have to send a CTRL+ALT+DELETE to restart.

I tried testing by writing a very simple script with just only one line:

When I run the above script, it also stops responding, and I have to go through the same process of rebooting the machine.

Is there a specific way regarding how to invoke the login command?

Any help regarding this will be appreciated.

Your script doesn't appear to exit which may be why it hangs. You could run it as "login &" which would background the script (though it would still run) or you could just put a second line reading "exit" (minus the quotes in both cases).