findmail shell script

findmail.sh

#!/bin/bash
scriptname=`basename ${0}`

if [ "$EUID" -ne 0 ]; then
  echo "Please run as root"
  exit 1
fi

# Check if an argument was set
if [ -z "$1" ]; then
  echo "${scriptname}: No search argument specified"
  echo "Try '${scriptname} PATTERN' to search for a specific email."
  exit 3
fi

# set up started variables
debug=false
found=false
declare -a list=("/var/log/mail.log" "/var/log/maillog")

# start by having found nothing (variable set near top)
for log in "${list[@]}"
do
  if [[ -e ${log} && -r ${log} ]]; then
    # we found something!
    for id in `cat ${log} | grep $1 | cut -d " " -f 7 | cut -d ":" -f 1 | grep -v "\=" | grep -v "\." | sort | uniq`
    do
      if [ ${debug} == true ] ; then
        echo "Found '${id}' referenced by looking for '${1}'..."
      fi
      if [[ ${#id} -gt 11 && ${#id} -lt 15 ]] ; then
        found=true
        cat ${log} | grep ${id} | grep "sm-mta"
      fi
      if [ ${debug} == true ] ; then
        echo
      fi
    done
  fi
done

# if we didn't find something, then
if [ ${found} != true ] ; then
  echo "No readable logfile(s) found."
  exit 2
fi