Shell script to fine area and perimeter

SOURCE CODE:

 

echo "Enter the length of the rectangle"
echo "Enter the length of the rectangle"
read l
echo "Enter the breadth of the rectangle"
read b
echo "Enter the side of the square"
read a
areaR=`expr $l \* $b`
periR=`expr $l \* 2 + $b \* 2`

Shell script for multiplication table

SOURCE CODE:

echo "Enter the number:"
read i
echo "$i table"
j=1
while [ $i -le 10 ]
do
l=`expr $j \* $j = $l`
echo "$j *$i = $l"
j=`expr $j + 1`
done

Shell script for swapping two values

SOURCE CODE:

echo "Enter first value:"
read a
echo "Enter second value:"
read b
temp=$a
a=$b
b=$temp
echo "The swapped value is:"
echo "First value = $a"
echo "Second value = $b"

Shell script to find simple interest

SOURCE CODE:

echo " Enter the principle value: "
read p
echo " Enter the rate of interest:"
read r
echo " Enter the time period:"
read t
s=`expr $p \* $t \* $r / 100`
echo " The simple interest is "
echo $s

Shell script to find Leap Year

SOURCE CODE:

echo "Enter the year :"
read year
d =`expr $year % 4'
if [ d -eq 0 ]
then
echo “$Given year is a leap year”
else
echo "$Given year is not a leap year”
fi

Shell script to greet user according to time.

SOURCE CODE:

hr=`date "+ %H"`

echo "Hour : " $hr

if test $hr -lt 12

then

echo "Good Morning User "

elif test $hr -gt 16

Shell script to display the digits in odd position from the given five digit no.

SOURCE CODE:

echo “Enter the string of the five nos.”

read n

i=1

a=” ”

while [ $i –le 5]

do

     o=`echo $n | cut –c $i`

     s=$s$a$o

i=`expr $i + 2`

    done

Shell script to read name and price of article and calculate net price with discount as follows.>If price less than 100 then 10% discount If price >= 100 then 20% discount

SOURCE CODE:

echo “Enter the article’s name:“

read name

echo “Enter the  price:”

read p

if [ $p –lt 100 ]

then

     t=`expr $p \* 10`

     r=`expr $t / 100`

     n=` expr $p - $r`

else

    

Shell script for interactive file handling program

SOURCE CODE:

echo "1. To copy a file"

echo "2. To rename a file"

echo "3. To remove a file"

echo "4. To compare two file"

read ch

case "$ch" in

1)

ls

echo "Enter existing file name :"

read file1

Shell script to Create a calculator by case system

SOURCE CODE:

echo “Enter the values :”

echo “x:”

read x

echo “y:”

read y

echo “1: Addition”

echo “2: Subtraction”

echo “3: multiplication.”

echo “4: Division.”

Write a shell script. to remove files having following properties…(i) Remove all files having exactly 3 characters. (ii) Remove all files having specified extension. (iii) Remove all files having Name starting with lower case letters and ending with digits.

SOURCE CODE:

echo “1: File having only 3 char."

echo “2: File having specified extension.”

echo “3: File having name starting with lower case letters and ends at digits.”

echo “Enter your choice:”

read c

if [ $c = 1 ]

then

     echo “Files are…”

     ls ???

Shell script to find a max no out of three nos using else if & and operator.

SOURCE CODE:

echo “Enter the three nos.”

read a

read b

read c

if [ $a –gt $b –a $a –gt $c ]

then

     echo $a “is maximum no.”

elif [ $b –gt $a –a $b –gt -$c ]

then

     echo $b “maximum no.”

else

     echo $c “is maximum no.”

fi

Shell script to concate two strings and find the length of resulting string.

SOURCE CODE:

echo “Enter 1st string:”

read s1

echo “ Enter 2nd string”

read s2

s=$s1$s2

l =`expr length $s`

 echo “string:” $s “ length :” $l

Shell script to reverse the given no.

SOURCE CODE:

echo  “Enter the no.:”

read n

l =`expr length $n `

a=1

d=$n

while [ $a –le $l ]

do

     m=`expr $d % 10`

     d=`expr $d / 10`

     s=$s$m

     a=`expr $a + 1`

done

echo $s

Shell script to sum of digits of a given no.

SOURCE CODE:

echo “Enter the no:”

read n

l =`expr length $n `

a=1

while [ $a –le $l ]

do

     r=`expr $n | cut –c $a`

     s=`expr $s + $r`

     a=`expr $a + 1`

done

echo “Ans:“ $s

Shell script to reverse a string.

SOURCE CODE:

echo “Enter the string”

read str

l=`expr length $str`

a=1

r=$l

while [ $a –le $r ]

do

     s=`expr $str | cut –c $l`

     l=`expr $l – 1`

     a=`expr $a + 1`

Shell script to find the max. no out of given five nos.

SOURCE CODE:

echo “Enter five nos.”

i=0

b=0

t=0

while [ $i –lt 5 ]

do

     read a

     b= $t

     if teat $b –lt $a

     then

Shell script to find the length of string, if it’s greater than 10 then print string is greater than 10 else less than 10.

SOURCE CODE:

echo “Enter the string:“

read str

l =`expr length $str`

if [ $l –lt 10 ]

then

     echo “String is less than 10”

fi

if [ $l –eq 10 ]

then

     echo “String is equal to 10”

fi

Shell script to print the fibonaci series up to given no.

SOURCE CODE:

echo “Enter the no.:“

read n

i=0

j=1

k=1

echo $i

while [ $j –le -$n ]

do

     echo $k

     k=`expr $j + $i`

Shell script to check whether the given no. is Armstrong or not

SOURCE CODE:

echo “ Enter the no.”

read n

l =`expr length $n`

i=1

d=1

while [ $i –le $l ]

do

     r=`expr $n | cut –c $i`

     i=`expr $i + 1`

     m=`expr $r \* $r \* $r`