#!/bin/bash

trap fin 2 5 15

fin ()
{
  echo "interruption utilisateur"
  for i in $(seq 1 $nbp)
  do
    kill -9 %$i
  done
}

lst=$*
nbp=0
cpt=0
bpt=0
color=30
background=40
bx=0
cx=1
for fic in $lst
do
  if [[ $cpt -eq $bpt ]]
  then
    bpt=$(($bpt+1))
  fi
  tail -f -n 0 $fic | awk -v background=$(($background+$bpt)) -v fic=$fic -v color=$(($color+$cpt)) '{print "\033[31m[\033[0m"fic " " color " " background "\033[31m]\033[0m: \033[" color ";" background "m" $0"\033[0m" }' &
  nbp=$(($nbp+1))
  cpt=$(($cpt+1))
  if [[ $cpt -gt 6 ]]
  then
    bpt=$(($bpt+1))
    cpt=0
  fi
  if [[ $bpt -gt 6 ]]
  then
    bpt=0
  fi
done

wait