For Linux - Please replace the XXXs in the script below to solve this:

Write a shell script that accepts exactly 1 argument which must be a positive

integer. The script will print a comma separated list of integers, all on the same

line, starting with the entered value and decreasing to 1.

The last printed value should not be followed by a comma.

The script should also be able to handle the following error situations:

o incorrect number of arguments

o non-positive arguments (dont worry about trying to handle non-integer

arguments)

The script file name must be: printnum.sh

The script must be located in $HOME/itec400/homework

Make sure the permissions on the your itec400 directory are 705

Make sure the permissions on your script are 705

Printnum.sh script logic:

#!/bin/ksh

# Script name: printnum.sh

# Execute script: ./printnum.sh

# Verify the number of arguments and exit if not equal to 1

if [ $#XXX1 ]

then

XXXXXX"error: program must be executed with 1 argument "

printf "usage: $0 value (where value >= 1) "

exit 1

fi

# Verify argument is a positive number

XX[ $1 -lt 1 ]

XXXX

printf "error: argument must be a positive number "

printf "usage: $0 value (where value >= 1) "

exit 1

XX

# Store command line argument in variable i

i="$1"

# Loop and print $i while decrementing variable to =1 (with comma)

XXXXX[XX-gt 1 ]

do

printf "$i, "

i=$(($i - 1))

done

# Print the last digit without a comma

XXXXXX"$i "