A complete begineers guide to learn shell scripting from scratch which includes Videos, Practice scenarios and project idea. I will create one file for one topic with code.

Before jumping into the Shell scripting below are commands you have to practice for better understanding and familiar with Linux command line interface.

If you do not learn below commands also fine but i personally recommend you to learn commands first.

103 Linux Commands Video Tutorial

alias and unalias, arch, arp, at, awk, bc, blkid, cal, cat, cd, chage, chattr, chgrp, chmod, chown, cp, cpio, crontab, curl, cut, date, dd, df, diff, dig, dnf, du, expr, fdisk, file, find, firewall-cmd, free, ftp, grep, head, history, hostname, id, ifconfig, iostat, ip, kill, last, lessandmore, ln, locate, lpstatandlpadmin, ls, lsof, lspci, mail, man, mdadm, mkdirandrmdir, mkisofs, mount, mutt, mv, nano, netstat, nice, renice, nslookup, passwd, pam_tally2, paste, ping, perloneliner, pkill, ps, pwd, reboot, poweroff, rm, rpm, rsync, scp, screen, sed, sort, ss, ssh, sysctl, tail, tar, tcpdump, top, touch, tr, traceroute, umask, uname, uniq, uptime, useradd, vi, vmstat, w, who, watch, wc, wget, ypcat, yppasswd, yum, zip, sar

After that start learning shell scripting using below topics

Resource to Download

Write Your Own Method of Script for below Scenario

Scenario: Everyday from Monday to Friday one directory will be created under /fullbackup/dailybackup/YYYY-MM-DD and it will move backup to its parent directory everyday midnight /fullbackup/archive/, However Saturday, Sunday and Monday directories will move to /fullbackup/archive path every monday evening.
Directory Names Example: 2018-12-24 2018-12-25 2018-12-26 2018-12-27 2018-12-28
Question: I would like to delete directories older than two days from /fullbackup/archive path. How do you do it using any scripting methods.
Problem Statement: I was trying to use find /path/ -type d -mtime +2 -print0 | xargs -r0 rm --. This command does not work as expected due to directory modified date for SAT, SUN and MON moved directories same for all as Monday date.
How Do you solve it.?? Write Shell Script to accomplish this task. Should run through crontab and clear directories older than two days.

使用案例

UNIX & Linux Shell Scripting Tutorial - If/Else

转载自： http://www.dreamsyssoft.com/sp_ifelse.jsp UNIX & Linux Shell Scripting Tutorial If/Else In order for a script to be very useful, you will need to be able to test the conditions of variables. Most
Shell Scripting Tutorial-2: Shell, Kernel, Terminal & More

cal cal 7 2006 date [root@usdalwm9 ~]# date '+DATE:%m-%y%nTIME:%H:%M:%S' DATE:11-13 TIME:04:49:30 [root@usdalwm9 ~]# a=3.5 [root@usdalwm9 ~]# a=11.4 [root@usdalwm9 ~]# expr $a / $b|bc expr: non-numeri
Bash For Loop Examples for Your Linux Shell Scripting--ref

There are two types of bash for loops available. One using the “in” keyword with list of values, another using the C programming like syntax. This article is part of our on-going bash tutorial s
Linux shell --变量

1.变量定义变量定义的=前后不能有空格 variable=value name=sarath age=28 2.访问变量使用$访问变量 echo $variable echo $name echo $age 3.设置变量来自用户输入使用read函数 #!/bin/bash echo "what is your name?" read name echo "Hello $name!. Welc
3.Write Scripts for the mongo Shell-官方文档摘录

总结 1 使用js进行获取数据的方法 2 js方式和原生mongo shell的交互方式的区别写法 3 需要将所有数据打印出来使用到的循环示例 cursor = db.collection.find(); while ( cursor.hasNext() ) { printjson( cursor.next() ); } 4 介绍怎么外部执行js文件 5 介绍怎么在mongo shell中加
Linux Command Line and Shell Scripting Bible

摘要： Talk directly to your system for a faster workflow with automation capabilityLinux Command Line and Shell Scripting Bible is your essential Linux guide. With detailed instruction and abundant exam

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Shell Scripting Tutorial

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