1.check_user.sh

#!/bin/bash

echo “You are logged in as `whoami`";

if [ `whoami` != linuxtone ]; then
echo “Must be logged on as linuxtone to run this script."
exit
fi

echo “Running script at `date`"

2.do_continue.sh

#!/bin/bash

doContinue=n
echo “Do you really want to continue? (y/n)"
read doContinue

if [ “$doContinue" != y ]; then
echo “Quitting…"
exit
fi

echo “OK… we will continue."

3.hide_input.sh

#!/bin/bash

stty -echo
echo -n “Enter the database system password: "
read pw
stty echo

echo “$pw was entered"

4.is_a_directory.sh

#!/bin/bash

if [ -z “$1″ ]; then

echo “"
echo " ERROR : Invalid number of arguments"
echo " Usage : $0 "
echo “"
exit
fi

if [ -d $1 ]; then
echo “$1 is a directory."
else
echo “$1 is NOT a directory."
fi

5.is_readable.sh

#!/bin/bash

if [ -z “$1″ ]; then

echo “"
echo " ERROR : Invalid number of arguments"
echo " Usage : $0 "
echo “"
exit
fi

if [ ! -r $1 ]; then
echo “$1 is NOT readable."
else
echo “$1 is readable."
fi

6.print_args.sh

#!/bin/bash
#
# The shift command removes the argument nearest
# the command name and replaces it with the next one
#

while [ $# -ne 0 ]
do
echo $1
shift
done