PLease write below Steps for given Shel Script..

I need Screenshot for each step

$$ Basic script to display the content using echo

$$ Variables script to display:

$$ User Input

$$ Conditional Script:

$$ Greater than, less than, equal to comparison script

$$ Loop script:

$$ File handling Script

$$ Function script

$$ Case statement Script:

$$ Arithmetic Operations

$$ Arithmetic operations using expr

$$ Positional Parameters

$$ Loops

IF$-$else loop

Do$-$while loop

$$ Looping through array elements

$$ Searching in array

SHEL SCRIPT:

#$!/$bin$/$bash

#echo "First Bash

fname$=$rajco

lname$=$siva

echo "welcome to ncpl $fname $lname$"$

$-----------------$

#$!/$bin$/$bash

#echo "First Bash

echo "enter the fname"

read fname

echo "enter the lname$"$

read lname

echo "welcome to ncpl $fname $lname$"$

$------------------$

#$!/$bin$/$bash

#echo "First Bash

fname$=$$$1$

lname$=$$$2$

echo "welcome to ncpl $fname $lname$"$

$---------------$

#$!/$bin$/$bash

num$1=20$

num$2=230$

num$3=`$expr $num$1+$ $num$2`$ or num$3=$$$(($$num$1+$ $num$2))$ or num$3=$$$($expr $num$1+$ $num$2)$

echo $num$3$

$-------------------------------------------$

#$!/$bin$/$bash

count$=5$

count$=`$expr $count $+1`$

echo $count

$-------------------------$

x$=10$

y$=20$

# matching numbers with $\text{'}=\text{'}$

res$=`$expr $x $=$ $y$`$

echo $res

# displays $1$ when arg$1$ is less than arg$2$

res$=`$expr $x $\backslash <$ $y$`$

echo $res

# display $1$ when arg$1$ is not equal to arg$2$

res$=`$expr $x $\backslash !=$ $y$`$

echo $res

$--------------------------------$

#$!/$bin$/$bash

# reading data from the user

read $-$r $-$p "Enter a: $"$ a

read $-$r $-$p "Enter b: $"$ b

add$=$$$(($a$+$b$))$

echo "Addition of a and b are: $"$$$\{$add$\}$

sub$=$$$(($a$-$b$))$

echo "Subtraction of a and b are: $"$$$\{$sub$\}$

mul$=$$$(($a$*$b$))$

echo "Multiplication of a and b are: $"$$$\{$mul$\}$

div$=$$$(($a$/$b$))$

echo "Division of a and b are: $"$$$\{$div$\}$

mod$=$$$(($a$\%$b$))$

echo "Modulis of a and b are: $"$$$\{$mod$\}$

$((++$a$))$

echo "Increment operator when applied on $a results into a :$""$$$\{$a$\}"$

$((--$b$))$

echo "Decrement operator when applied on $\text{'}$b$\text{'}$ results into b :$""$$$\{$b$\}"$

$---------------------------------$

#$!/$bin$/$bash

#reading data from the user

read $-$p 'Enter a : $\text{'}$ a

read $-$p 'Enter b : $\text{'}$ b

if$(($ $a$==$$b $))$

then

echo a is equal to b$.$

else

echo a is not equal to b$.$

fi

if$(($ $a$!=$$b $))$

then

echo a is not equal to b$.$

else

echo a is equal to b$.$

fi

if$(($ $a$<$$b $))$

then

echo a is less than b$.$

else

echo a is not less than b$.$

fi

if$(($ $a$<=$$b $))$

then

echo a is less than or equal to b$.$

else

echo a is not less than or equal to b$.$

fi

if$(($ $a$>$$b $))$

then

echo a is greater than b$.$

else

echo a is not greater than b$.$

fi

if$(($ $a$>=$$b $))$

then

echo a is greater than or equal to b$.$

else

echo a is not greater than or equal to b$.$

fi

$----------------------------------$

#$!/$bin$/$bash

#reading data from the user

read $-$p 'Enter a : $\text{'}$ a

read $-$p 'Enter b : $\text{'}$ b

if$(($$a $==$ "true" & $b $==$ "true" $))$

then

echo Both are true.

else

echo Both are not true.

fi

if$(($$a $==$ "true" $||$ $b $==$ "true" $))$

then

echo Atleast one of them is true.

else

echo None of them is true.

fi

if$((!$ $a $==$ "true" $))$

then

echo $"$a$"$ was initially false.

else

echo $"$a$"$ was initially true.

fi

$----------------------$

#$!/$bin$/$bash

#reading data from the user

read $-$p 'Enter a : $\text{'}$ a

read $-$p 'Enter b : $\text{'}$ b

if$(($$a $==$ "true" & $b $==$ "true" $))$

then

echo Both are true.

else

echo Both are not true.

fi

if$(($$a $==$ "true" $||$ $b $==$ "true" $))$

then

echo Atleast one of them is true.

else

echo None of them is true.

fi

if$((!$ $a $==$ "true" $))$

then

echo $"$a$"$ was initially false.

else

echo $"$a$"$ was initially true.

fi

$----------------------$

#$!/$bin$/$bash

#reading data from the user

read $-$p 'Enter a : $\text{'}$ a

read $-$p 'Enter b : $\text{'}$ b

bitwiseAND$=$$$(($ a&b $))$

echo Bitwise AND of a and b is $bitwiseAND

bitwiseOR$=$$$(($ a$|$b $))$

echo Bitwise OR of a and b is $bitwiseOR

bitwiseXOR$=$$$(($ a$^$b $))$

echo Bitwise XOR of a and b is $bitwiseXOR

bitiwiseComplement$=$$$(($ ~a $))$

echo Bitwise Compliment of a is $bitiwiseComplement

leftshift$=$$$(($ a$<<1))$

echo Left Shift of a is $leftshift

rightshift$=$$$(($ b$>>1))$

echo Right Shift of b is $rightshift

$--------------------$

expr length "rajco" $"<"5"|"19-6">"10$

$----------------$

x$=$rajco

len$=`$expr length $x$`$

echo $len

$-------------------$

:$1,$$d

$-----------------$

#$!/$bin$/$bash

echo "Enter the value a$"$

read a

if $[$ $a $-$lt $10]$

then

echo $"$$a is leass than $10"$

fi

$--------------------------------$

I need Screenshots please for all above steps..