Shell script Beginner's Exercise Chapter

Shell script Beginner's Exercise Chapter

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Script 1  

Function: Create 10 1M files

[[email protected] script]# cat make_file.sh #!/bin/bash#for i in $ (seq 1);d o dd if=/dev/zero of=/data/test/test "${i } "bs=1m Count=1done

Script 2

Function: Remove ordinary files larger than 100K in the/data/test directory into/tmp directory

[email protected] script]# cat file_mv.sh #!/bin/bash#find/data/test-type f-size +100k | Xargs-i MV {}/tmp

Script 3

Function: Delete any character that contains test in the/tmp directory and size greater than 100K file

[email protected] script]# cat file_rm.sh#!/bin/bash#find/tmp-name "test*"-type f-size +100k | Xargs-i Rm-f {}

Script 4

Example of a For loop with Continue,break

[[email protected] script]# cat for.sh #!/bin/bash# for loop egsfor I in {1..10};d o if [[$I-eq 6]];then Echo "Six six Six" continue elif [[$I-eq 9]];then echo "Bye Bye 9" Break fi echo $Idone

Script 5

Simple While loop example

[[email protected] script]# cat while.sh #!/bin/bash# while loop egsnum=5while [[$NUM-gt 0]];d o echo $NUM let NUM -=1done

Script 6

Simple Until loop example

[[email protected] script]# cat until.sh #!/bin/bash# until Loop egs#num=5until [[$NUM-lt 0]];d o echo $NUM let NU M-=1done

Script 7

Case statement usage with positional parameters

[email protected] script]# cat case.sh #!/bin/bash#case loop egs#var=$1case $VAR Inneo) echo hacker; Sternberg) echo rigorous;; Michael) echo creative;; *) echo unknow;; Esac

Script 8

Function Functions Example

[email protected] script]# cat function.sh #!/bin/bash#function egs# #1st functionfunction hi () {echo "Hi,you is Beau Tiful! "} #sencond Functionhello () {ECHO-E "June Lei says\" Hello thank you\ ""}hihello

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Shell script Beginner's Exercise Chapter