SHELL SCRIPT TO SORT IN DESCENDING ORDER THE NUMBERS GIVEN AS SHELL ARGUMENTS

if [ $# -eq 0 ]

then

    echo "Enter valid Arguments"

    exit

fi

> temp

for i in $*

do

echo "$i" >> temp

done

echo "Your sorted data:"

sort -nr temp

echo "End of Script"

Output

sh sort 12 20 9 8 17

Your sorted data :

8 9 12 17 20

Create Chess Board Using Nested For loop in UNIX SHELL SCRIPT

for (( i = 1; i <= 9; i++ )) ### Outer for loop ###

do

   for (( j = 1 ; j <= 9; j++ )) ### Inner for loop ###

   do

        tot=`expr $i + $j`

        tmp=`expr $tot % 2`

        if [ $tmp -eq 0 ]; then

            echo -e -n "\033[47m "

        else

            echo -e -n "\033[40m "

        fi

  done

 echo -e -n "\033[40m" #### set back background colour to black

 echo "" #### print the new line ###

done

output :~

Digital CLOCK on your Screen Using Unix

echo

echo "Digital Clock for unix"

echo "To stop this clock use command kill pid see above for pid"

echo "Press a key to continue. . ."

while :

do

    ti=`date +"%r"`     

    echo -e -n "\033[7s"    

#save current screen postion & attributes

    tput cup 0 69         

# row 0 and column69 is used to show clock

    echo -n $ti           

# put clock on screen

    echo -e -n "\033[8u"   

#restore current screen postion & attributs

    sleep 1

done