Shell Programming and Scripting

#!/usr/bin/ksh
# Script: auto_rec_advance.sh
# Descr:  Example of auto record advance(i.e. carriage return) with simple menu

menu ()
{
  echo "-------------------------------------"
  echo " Main Menu "
  echo "-------------------------------------"
  echo "[1] Show Todays date/time"
  echo "[2] Show files in current directory"
  echo "[3] Show calendar"
  echo "[4] Start vi"
  echo "[5] Exit/Stop"
  echo "======================="
  echo "Enter your menu choice [1-5]: \c"
}


getc ()
{
  stty raw
  tmp=`dd bs=1 count=1 2>/dev/null`
  eval $1='$tmp'
  stty cooked
}


yourc ()
{  
case $yourch in
  1) echo ; echo ; echo "Today is `date`" ; echo ; echo ;;
  2) echo ; echo ; echo "Files in `pwd`" ; ls -ltr ; echo ; echo ;;
  3) echo ; echo ; cal ; echo ; echo ;;
  4) vi ; echo ; echo ;;
  5) exit 0 ;;
  *) echo ; echo ; echo "Opps!!! Please select choice 1,2,3,4, or 5" ; echo ; echo ;;
esac
}

while :
do
  menu
  getc yourch
  yourc
done