catlast

#!/bin/bash

##################################################################
# file name: cat last                                            #
# display last file by 'ls -ltrF' command                        #
##################################################################


ME=`basename $0`

showHelp()
{
  echo "usage $ME [-h] [-n] [-l]"
  echo "-h: show help"
  echo "-n: no line number"
  echo "-l: pipe to less"
}

NUMBER=0
LESS=1

while getopts :hnl OPTION
do
  case $OPTION in
    l) LESS=0
       ;;
    n) NUMBER=1
       ;;
    h) showHelp
       exit 0
       ;; 
  esac
done

[ $NUMBER -eq 0 ] && NUMBER_ARG=" -n "
[ $LESS -eq 0 ] && LESS_ARG=" | less"

LASTFILE=`ls -ltr | grep '^/-' | sed -n '$p' | awk {'print$NF'}`

if [ -n "$LASTFILE" ]
then
  CMD="/bin/cat $NUMBER_ARG $LASTFILE $LESS_ARG"
  echo $CMD
  eval $CMD
  RET=$?
else
  echo "No file was found!"
  RET=1
fi

exit $RET