Bash: Split stdout from multiple concurrent commands into columns

Question

I am running multiple commands in a bash script using single ampersands like so:

commandA & commandB & commandC

They each have their ow

Answer 1

Script print out three vertical rows and a timer each row containing the output from a single script. Comment on anything you dont understand and ill add answers to my answer as needed

Hope this helps :)

#!/bin/bash
#Script by jidder

count=0
Elapsed=0
control_c()
{
    tput rmcup
    rm tail.tmp
    rm tail2.tmp
    rm tail3.tmp
    stty sane
}


Draw()
{
       tput clear
       echo "SCRIPT 1                                                                                                                     Elapsed time =$Elapsed seconds"
        echo "------------------------------------------------------------------------------------------------------------------------------------------------------"
        tail -n10 tail.tmp
        tput cup 25 0

        echo "Script 2                                                                                                                                                   "
        echo "------------------------------------------------------------------------------------------------------------------------------------------------------"
        tail -n10 tail2.tmp
        tput cup 50 0

        echo "Script 3                                                                                                                                                   "
        echo "------------------------------------------------------------------------------------------------------------------------------------------------------"
        tail -n10 tail3.tmp
}


Timer()
{
        if [[ $count -eq 10  ]]; then
                Draw
                ((Elapsed = Elapsed + 1))
                count=0
        fi


}
main()
{
    stty -icanon time 0 min 0
    tput smcup
    Draw
    count=0
    keypress=''
    MYSCRIPT1.sh > tail.tmp &
    MYSCRIPT2.sh > tail2.tmp &
    MYSCRIPT3.sh > tail3.tmp &

    while [ "$keypress" != "q" ]; do
            sleep 0.1
            read keypress
            (( count = count + 2 ))
            Timer
    done

    stty sane
    tput rmcup
    rm tail.tmp
    rm tail2.tmp
    rm tail3.tmp
    echo "Thanks for using this script."
    exit 0
}

main

trap control_c SIGINT