How can you use conditional statements in a shell script to make decisions based on certain conditions?

Using Conditional Statements in Shell Scripting for Decision Making

Conditional statements in shell scripting allow you to make decisions based on certain conditions within your script. There are different types of conditional statements that you can use in a shell script:

1. if statement: Used to execute a block of code only if a specified condition is true.
2. if-else statement: Allows you to execute a block of code if a condition is true and another block of code if the condition is false.
3. if-elif-else statement: Used to specify multiple conditions and execute different blocks of code based on these conditions.

Here is an example of using an if statement in a shell script:

#!/bin/bash

# Check if a file exists
if [ -f file.txt ]; then
    echo "File exists"
else
    echo "File does not exist"
fi

By incorporating conditional statements in your shell scripts, you can create more dynamic and responsive scripts that adapt to different scenarios based on the conditions you specify.