#!/bin/zsh

# We have to supress less and grep for the pattern to work accurately
if [[ $1 == "" ]]; then
  ps ax | egrep -v '(grep|pslist|less)' | less
elif [[ $2 == "" ]]; then
  ps ax | egrep -v '(grep|pslist|less)' | less -p $*
else
  opts=$1
  shift
  ps "ax$opts" | egrep -v '(grep|pslist|less)' | less -p $*
fi