I am working on automating a maintenance routine that involves starting and stopping a script that is running in a screen session. My approach is to kill the screen session, and then restart it and run the command from within a script using the abilities to both create a screen and pass a command without needing to attach to the screen.
However, I am having difficulties with this. I can create the screen correctly without it attaching using
screen -d -m -S screen_name. However, if I run a command based on:
screen -S screen_name-X stuff "command 1"'echo -ne '\015''"command 2"'echo -ne '\015''
with the echo -ne '\015' being wrapped with backticks rather than single quotes. It is to simulate the user pressing the enter key as the commands I use are moving to a directory and executing a script located there. This command works, but only if the screen has been attached to once it has been created. As I am trying to automate the process of creating the screen and running the commands within it I would like to avoid having to attach and detach within a script. I will be trying the suggestion of creating a shell script containing the commands I need to execute within the screen and edit according to my results.
Is there a way to create a screen and run a command within the screen either in one command, or without having to attach to the screen after creating but before execution of the command?
Thanks in advance.
*Update - having tried the suggestion to place the commands I need to execute within a shell script I have been able to successfully create a screen and execute the commands from within the screen, but I am getting the behaviour that when the script stops running the screen closes as well. This shouldnt be a problem as the script is a logging script that should only stop with the knowledge of the sys admin or through the script I am trying to develop, however it would be preferable to have the screen setup in such a way that the screen does not disappear if the script is stopped. Is it possible to achieve this behaviour? *