44 interview questions on Bash - Fundamentals for developers (2026)

Medium

2 votes401 runs0 comment

Find the default shell for a user in Bash

System Administrator

bash

shell

Anonymous authorat Sep 19, 2022

Medium

2 votes400 runs0 comment

Display lines containing 'Error' in all .txt files

System Administrator

grep

bash

Anonymous authorat Sep 19, 2022

Medium

2 votes85 runs0 comment

How to set the permissions of a file in Bash?

System Administrator

permissions

chmod

Anonymous authorat Mar 23, 2022

Hard

1 vote362 runs

1 comment

Find all rows containing patterns 1 and 2 in a file using Bash

System Administrator

bash

grep

regular expression

Anonymous authorat Sep 19, 2022

Medium

1 vote355 runs0 comment

What does the shell prompt `user@user:~$` mean?

System Administrator

bash

shell

Anonymous authorat Sep 19, 2022

Hard

1 vote330 runs

3 comments

How to count the number of lines in a file in Bash

System Administrator

bash

command line

wc

Anonymous authorat Mar 23, 2022

Easy

1 vote315 runs0 comment

What does 2>&1 means in the script below? ``` compile "$i" > "${i%.txt}".ass 2>&1 ```

System Administrator

bash

redirect

Anonymous authorat Sep 19, 2022

Hard

1 vote242 runs0 comment

Which line deletes all files in a directory? (visible and hidden files)

System Administrator

bash

files

Anonymous authorat Apr 28, 2023

Hard

1 vote84 runs0 comment

Display lines 4 to 12 of a file in Bash

System Administrator

bash

file

Anonymous authorat Mar 23, 2022

Easy

1 vote58 runs0 comment

What is the order of the arguments when we want to execute a command in Bash?

System Administrator

command

arguments

Anonymous authorat Mar 23, 2022

Easy

1 vote2 runs0 comment

Bash: Execute cmd2 if cmd1 succeeds.

System Administrator

conditional execution

operators

Maxime Chenaudat Jan 6, 2026

Expert

0 vote373 runs

1 comment

Write a bash script that prints the numbers from 1 to 11.

System Administrator

bash

functions

arguments

Anonymous authorat Sep 19, 2022

Hard

0 vote348 runs0 comment

How to do an infinite loop in bash?

System Administrator

loops

bash

Anonymous authorat Mar 23, 2022

Expert

0 vote346 runs0 comment

How to use egrep and diff in Bash

System Administrator

bash

command line

Anonymous authorat Sep 19, 2022

Medium

0 vote330 runs0 comment

Explain what happens when the user types a command in a shell.

System Administrator

shell

command

Anonymous authorat Mar 23, 2022

Expert

0 vote328 runs0 comment

Write a Bash script that prints 3.

System Administrator

bash

variables

operators

Anonymous authorat Sep 19, 2022

Hard

0 vote324 runs0 comment

Write the first 10 lines of a file in Bash

System Administrator

bash

file

Anonymous authorat Mar 23, 2022

Medium

0 vote320 runs0 comment

Write a Bash script that counts the number of lines in all text files in the current directory.

System Administrator

bash

loops

files

Anonymous authorat Sep 19, 2022

Hard

0 vote318 runs0 comment

Return the parent directory of a path in Bash

System Administrator

bash

command line

Anonymous authorat Mar 23, 2022

Medium

0 vote316 runs0 comment

Declare a function in Bash with or without the keyword `function`

System Administrator

functions

Anonymous authorat Mar 23, 2022

44 interview questions on Bash - Fundamentalsfor developers (2026)

Test your technical skills before an interview of Bash - Fundamentals with 44 corrected questions. Beginner, Intermediate or Expert level.

Find the default shell for a user in Bash

Display lines containing 'Error' in all .txt files

How to set the permissions of a file in Bash?

Find all rows containing patterns 1 and 2 in a file using Bash

What does the shell prompt `user@user:~$` mean?

How to count the number of lines in a file in Bash

What does 2>&1 means in the script below? ``` compile "$i" > "${i%.txt}".ass 2>&1 ```

Which line deletes all files in a directory? (visible and hidden files)

Display lines 4 to 12 of a file in Bash

What is the order of the arguments when we want to execute a command in Bash?

Bash: Execute cmd2 if cmd1 succeeds.

Write a bash script that prints the numbers from 1 to 11.

How to do an infinite loop in bash?

How to use egrep and diff in Bash

Explain what happens when the user types a command in a shell.

Write a Bash script that prints 3.

Write the first 10 lines of a file in Bash

Write a Bash script that counts the number of lines in all text files in the current directory.

Return the parent directory of a path in Bash

Declare a function in Bash with or without the keyword `function`