Emulate job control signals from bash script

fg_proc_list.bash

# First run the following 2 lines in your interactive bash attached to a controlling terminal
export bashpidfile="/tmp/bashpid" # File that stores the bash pid
export PROMPT_COMMAND='echo $$ > $bashpidfile' # Or, replace $$ with $BASHPID

# From another terminal do the following
### TPGID gives fg proc group on the tty the process is connected to, or -1 if the process is not connected to a tty
fgpg=$(ps --pid $(awk NR==1 $bashpidfile) -o tpgid=)

# Send signal SIG to all foreground processes to emulate user Ctrl- inputs
# Ctrl-C: INT, Ctrl-Z: TSTP, Ctrl-\: QUIT
pkill -SIG -g|--pgroup $fgpg