CODEWITHSUNDEEP
linuxshellterminal
Jake
Jake

Reputation: 16837

Shell script: inject command into existing running terminal process

I have a situation where there is a running terminal process. I can find the PID of the terminal. I want to inject a command s.t. it runs and prints output in the target terminal process. I tried the following:

# Assuming terminal with PID is running in a different window
$ echo "ls\n" > /proc/PID/fd/0

This just prints the string in the second terminal window. How can I send a command (like ls) and then an enter key press into the second terminal window ? Thanks

Upvotes: 0

Views: 304

Answers (1)

Philippe
Philippe

Reputation: 26557

If you have xdotool installed ;

$ xdotool search --pid 2981 # 2981 being the PID of terminal, not shell
60817444
$ xdotool windowfocus --sync 60817444  type $'ls\n'

Upvotes: 1

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