create multiple screen session for a specific function

bash_create_multiple_screen_sessions.sh

#!/bin/bash

#
# it starts multiple screen session whose usual task is remote ssh over
# a line separated list of IP's
# session_name : the prefix of the name of the screen sessions
# script_name : implements the remote ssh code e.g. with python's paramiko
# input_file_prefix : the prefix of the files for the script to process
# iterations : the number of input files which is equivalent to the screen sessions to be spawned (indexing is zero-based)
#

if [ $# != 4 ] ; then
  printf "usage: %s: session_name script_name input_file_prefix iterations\n" $0
  exit 1
fi


SESSION=$1
SCRIPT=$2
INPUT=$3
NUMBER=$4


awk -v name=$SESSION -v script=$SCRIPT -v file=$INPUT -v times=$NUMBER '
BEGIN{
        if( times <= 0 )
                exit 2

        for( i = 0; i < times; i++ ) {
                strCommand = sprintf( "screen -S %s%02d -md ./%s %s%02d", name, i, script, file, i );
                printf strCommand "\n"
                system( strCommand );
        }

}'


exit 0