Shell Scripting Exercise A

if Multi-branch statement practice

#!/bin/bash

read-p " Please enter 100 m running seconds: "I

If [$i-lt] && [$i-GT 0]

Then

echo " Enter the final "

read-p " enter male and female "a

if [$a = male]

Then

echo " into the men's group "

elif [$a = female]

Then

echo " Enter the women's group "

Else

echo "Error"

Fi

elif [$i-ge 10]; Then

echo " elimination "

Else

echo " Error "

Fi

Case Statement Practice, automatically unzip the compressed file according to the filename suffix

Vim untar.sh

#!/bin/bash

Case $ in

*.gz)

If [-F $]

Then

TAR-ZXVF $1-c/opt

Fi

;;

*.BZ2)

If [-F $]

Then

TAR-JXVF $1-c/opt

Fi

;;

*)

echo " file format Error "

Esac

For integers less than 100 and

#!/bin/bash

Sum=0

read-p " Enter an integer less than 100: "N

If [$n-lt 100]; Then

For I in $ (seq 1 $n)

Do

Let sum= $sum + $i

Done

echo " from 1 to $n, so the number of integers is $sum "

Else

echo " input Error "

Fi

Odd and, even, and equal to less than 100

#for Statement Format

#!/bin/bash

Sum=0

For i in {1..100..2}

Do

Let sum= $sum + $i

Done

echo " Cardinality and = $sum "

Sum=0

For I in $ (SEQ 0 2 100)

Do

Let sum= $SUM + $i

Done

echo " Even and = $SUM "

#while Statement Format

#!/bin/bash

A=1

B=0

While [$a-le 100]

Do

If [' Expr $a% 2 '-eq 1]; Then

# if [$ ($a%2)-eq 1]; Then

Let b= $b + $a

Fi

Let a++

Done

echo " Cardinality and = $b "

A=1

C=0

While [$A-le 100]

Do

# if [' Expr $A% 2 '-eq 0]; Then

If [$ ($A%2)-EQ 0]; Then

Let c= $c + $A

Fi

Let a++

Done

echo " Even and = $c "

Shell Scripting Exercise A