#!/bin/bash
# watch_and_nice - Watches for the specified process name, and renices it
#    to the desired value when seen.

if test $Argc -ne 2  {
  echo "Usage: $(basename $0) desirednice jobname" >&2
  exit 1
}

setvar pid = "$(renicename -p "$2")"

if test $pid == ""  {
  echo "No process found for $2"
  exit 1
}

if test ! -z $(echo $pid | sed 's/[0-9]*//g')  {
  echo "Failed to make a unique match in the process table for $2" >&2
  exit 1
}

setvar currentnice = "$(ps -lp $pid | tail -1 | awk '{print $6}')"

if test $1 -gt $currentnice  {
  echo "Adjusting priority of $2 to $1"
  renice $1 $pid
}

exit 0