Bash processes a.k.a playing with 'ps'

seek_and_destroy.sh

ps -eo pid,command | grep 'writer' |  cut -d ' ' -f 1 | xargs -I proceso kill -9 proceso

spawn_child_process.sh

#!/usr/bin/env bash

for a in $(seq 1 4)
do
  bash writer_script.sh $a &
  WAITPIDS="$WAITPIDS "$!
done

wait $WAITPIDS

echo "Script has finished"

writer_script.sh

# write some random data

for numero in $(seq 1 1000)
do
  ruby -e 'puts rand(1..200)' >> votes_bash_$1.csv
done