Writing one-line conditional statements and loops

In this recipe, we are going to write scripts that will contain one-line conditional statements as well as looping statements.

 

Getting ready

You need to have basic knowledge of conditional and looping statements.

How to do it...

Now we will write a script for a one-line conditional statement. In this script, we will write a simple if condition. Create a script named if_oneline.sh and write the following code in it:

a=100
if [ $a -eq 100 ]; then echo "a is equal to $a"; fi

Next, we will write a script for a one-line loop statement. In it, we are going to write a command that will execute 10 times. Create a script for_online.sh, and write this code in it.

for i in {1..10}; do echo "Hello World"; done

Now, we will write a script for a one-line while statement. This will be an infinite loop. Create a script named while_oneline.sh and write the following code in it:

x=10
while [ $x -eq 10 ]; do echo $x; sleep 2; done

How it works...

In this recipe, we wrote...