fancyio - interactive bash shell script
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#!/bin/bash
# This shell script demonstrates how to write interactive shell scripts
# by allowing you to get user input. Also demonstrated is the use of
# shell functions and shell arrays, timing using SECONDS, and more!
# Written by Wayne Pollock, Tampa FL 1996
# Define a shell function called Pause
#Pause()
#{
# echo
# echo -n Hit Enter to continue....
# read
#}
Pause()
{
key=""
echo -n Hit any key to continue....
stty -icanon
key=`dd count=1 2>/dev/null`
stty icanon
}
# Simple input
echo
echo -n "Enter something: "
read ANSWER
echo You typed: "$ANSWER"
Pause # invoke the function Pause.
# Example of using input. Note the use of the shell variable SECONDS to
# time the user's input.
echo
echo -n "What is the capitol of Florida? "
START=$SECONDS
read
END=$SECONDS
echo -n "It took you $(($END - $START)) Seconds "
if [ "$REPLY" != "Tallahassee" ]
then
echo 'to come up with the wrong answer!! ("Tallahassee")'
else
echo "to figure that out!"
fi
echo
echo -n "OK, now type in a short sentence: "
read WORD1 REST
echo The first word is "${WORD1}"
echo the rest is: $REST
set -- ${WORD1} ${REST} # This sets $1, $2, ... to the input
echo
echo You typed $# words.
# old ksh way for creating an array:
#set +A WordList "$@"
WordList=("$@") # Sets an array from the positional parameters
# Note the use of "$@" instead of "$*".
echo "Counting again... yup, there are ${#WordList[*]} words."
if [ $# = 0 ]
then
echo Why didn\'t you type something, you dummy?
else
echo -n The last word was \"${WordList[$(($# - 1))]}\".
echo " Isn't that interesting?"
fi
Pause # invoke the function Pause.
# Example of select menu:
clear
echo Let\'s reach out and finger someone...
echo
PS3='Please enter a choice from the above menu: '
#set +A WhoList $(who |awk '{print $1}')
WhoList=($(who |awk '{print $1}'))
select CHOICE in ${WhoList[*]} Quit
do
case "$CHOICE" in
"") echo Hit Enter to see menu again!
continue
;;
Quit) break # exit the loop
;;
*) finger $CHOICE |more
;;
esac
done
echo
echo "Th-th-th-that's all, Folks!"
