Pause a screen terminal

I constantly use terminal screens to manage different tasks in linux. I would like to know if is possible to 'pause' or 'suspend' a given screen and resume it later (no reboot in between).

Let's say that I create the following screen:

screen -S R

Then I start R and let a process running:

for(lop in 1:1000000){
print(lop)}

There is a way to say something like:

screen -X -S R pause

And resume afterwards wit something like:

 screen -X -S R pause

My whole point is to release some processing power temporarily without killing long processes. I would be glad for any light here.

1 Answer

Since you started screen with screen -S R, you initially started with a shell inside the screen session, probably bash. So, you could take advantage of bash's job management by pressing Ctrl+Z to suspend the R process, and then resume it later with fg:

[1] 7221
[1] 7222
[1] 7223
[1] 7224
^Z
[1]+ Stopped R
$ fg
[1] 7225

1

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