How to send a screen command to a session?

How to send a screen command to a session?

To send a screen command to a session: screen -S sessionName -p 0 -X screen command The -p 0 flag is for the window inside screen. If you have created multiple windows (CTRL+A c) you can specify the number.

How to create and manage multiple screen sessions?

First, create a new session or attach to an opened session. I am going to create a new session named “nested”. Now, press Ctrl+a and c inside the session to create another session. Just repeat this to create any number of nested Screen sessions. Each session will be assigned with a number. The number will start from 0.

What are the commands for the screen user?

Session Management Commands. Perhaps the most useful feature of screen is the way it allows the user to move a session between terminals, by detaching and reattaching. This also makes life easier for modem users who have to deal with unexpected loss of carrier. Detach: Disconnect screen from your terminal. Power Detach: Detach and log out.

Is there a way to auto start a screen session?

Auto-starting Screen sessions will greatly help when running a long running process via SSH. If you lost the network connectivity for any reason, the process will keep running inside the Screen session in the remote system and you can reattach to it when the network comes back online.

How to send a command to a specific window?

This is useful when you want to reattach to a specific window or you want to send a command via the “-X” option to a specific window. -X Send the specified command to a running screen session e.g. stuff. Stuff the string string in the input buffer of the current window. This is like the “paste” command but with much less overhead.

How to send a shell command to a screen?

As explained above, there is a difference between shell commands and screen commands. screen has the -X flag which allows you to send a (screen) command to a session. To send a screen command to a session: The -p 0 flag is for the window inside screen. If you have created multiple windows ( CTRL+A c) you can specify the number.

How to start a detached session in win 10?

You can start a detached screen session with the following command: you can view all screen sessions and with either screen -r or screen -x you can reattach to a session. As explained above, there is a difference between shell commands and screen commands. screen has the -X flag which allows you to send a (screen) command to a session.

How to send text input to a detached screen?

Experimentally, when you start a Screen session in detached mode ( screen -d -m ), no window is selected, so input later sent with screen -X stuff is just lost. You need to explicitly specify that you want to send the keystrokes to window 0 ( -p 0 ).

Why is my session starting from a script?

The problem with starting the session from a script is likely related to unMENU. Just a heads up that the $ () construct strips newlines from the output of command so that the output lines can be used as the arguments for other programs. This can cause unexpected behavior.