How to resume terminal functionality after issuing the "suspend" command?

I typed suspend in my terminal, and it suspended the execution.

How do I get back to normal terminal functioning? I've tried Ctrl+C, Ctrl+D, Ctrl+Q (as suggested here), and Ctrl+Z, but none of these work. Of course I can close the terminal and open a new one, but is there no way to "resume" the terminal functionality?

I'm running Ubuntu GNOME 16.04, with default (bash) shell.

Solution 1:

From your link:

until it receives a SIGCONT signal.

So that would be kill -SIGCONT {pid}

• killall -CONT bash would resume all.
• kill -18 {pid} would be the same.
• and so is kill -s CONT {pid}

According to this list it should be control-z but you need to use control-z to stop the process:

18 - SIGCONT - Resume process, ctrl-Z (2nd)
19 - SIGSTOP - Pause the process / free command line, ctrl-Z (1st)

You need the {pid} of the shell session running in the terminal

And there is also job control commands:

fg, bg

The fg command switches a job running in the background into the foreground. 
The bg command restarts a suspended job, and runs it in the background. 
If no job number is specified, then the fg or bg command acts 
upon the currently running job.