More shell scripts

Additional shell scripts for you to practice.

Make sure you use the command chmod to change file permission to be executable.

   chmod 755 filename.sh

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# Name this file readcommand.sh

# Usage readcommand.sh 1 2 3 4

#!/bin/sh
# Illustrate the use of positional parameters, user-defined
# variables and the read command

echo "What is your name?"
read name
echo "Well, $name, you typed $# arguments:"
echo "$*"

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# Name this file addnumber.sh

# Usage : addnumber.sh 35 50

#!/bin/sh
# add two numbers

sum=`expr $1 + $2`
echo $sum

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# Name this file testday.sh

#!/bin/sh
set `date`
if test $1 =  Fri
then
echo "Thank goodness it is Friday"
elif test $1 =  Sat  ||  test  $1  =  Sun
then
echo " You should not be working on the weekend."
echo " Log off the system and go home."
else
echo " It is not yet weekend. Go to work!"
fi

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# Name this file  whileloop.sh

# Usage: whileloop.sh this is a test

#!/bin/sh
# print a message ten times
count=10
while test $count -gt 0
do
echo $*
count=`expr $count - 1`
done

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