screen_control.sh

#!/bin/bash
# controlling a screen session from the terminal

screen_name="fab_session_${RANDOM}"  # Generate unique screen session name
screen -S ${screen_name} -d -m       # Open detached screen session

# Send commands to the screen session
screen -S ${screen_name} -p 0 -X stuff "echo \'hello world\!\'^M"
screen -S ${screen_name} -p 0 -X stuff "echo -n \'Still here, \!\'^M"
screen -S ${screen_name} -p 0 -X stuff "echo -n \' Still selling real fake doors\!\'^M"

# Output from:
# $ screen -r ${screen_name}
#
#  ~                                                           09:59:59  kolby
#  1 ❯ echo 'hello world\!'
# hello world\!
#  ~                                                           10:02:06  kolby
# ❯ echo -n 'Still here, \!'
# Still here, \! ~                                             10:03:08  kolby
# ❯ echo -n ' Still selling real fake doors\!'
#  Still selling real fake doors\! ~                           10:03:29  kolby