2 Weeks - Shell Scripting learning plan

What is Shell Scripting?

Different types of Shells (Bash, Zsh, Sh, etc.)

Basic Linux Commands for Shell Scripting:

- File and directory management (ls, cd, mkdir, rm, etc.)

- Viewing and manipulating files (cat, head, tail, cut, grep)

- Process management (ps, kill, top)

Setting up a shell scripting environment

Creating and running a script (.sh file)

Understanding shebang (#!/bin/bash)

Making scripts executable (chmod +x)

Defining variables

Environment vs. local variables

Using read to take user input

Operators in Shell Scripting

Arithmetic operators

Comparison operators

Logical operators

if, elif, else

case statement

for loop

while loop

until loop

Creating and calling functions

Using parameters in functions

$1, $2, $@, $#

getopts for option parsing

Understanding exit codes

Using set -e, trap

File test operators (-f, -d, -e, etc.)

Reading from and writing to files

Redirection & Piping

> and >> operators

Using | (pipe) to combine commands

Using echo and logger

Debugging with set -x

Running scripts in the background

nohup and jobs

Creating cron jobs

Scheduling one-time jobs with at

Declaring and using arrays

String manipulation (sed, awk, cut)

Using curl and wget

Checking internet connectivity in scripts

Creating backup scripts

Automating log cleanup

Calling Python scripts from Shell

Using Shell scripts in DevOps (AWS CLI, Docker, Kubernetes)