Basic Linux Commands Set for QA and SDET 2023? Linux commands for Manual Testers, DevOps?

"Linux FUN FACTS"100% of the world’s 500 fastest supercomputers run Linux.

Let's learn Linux commands for SDET/QA/DevOps profile, do check previous posts with 40+ Linux commands and make your own cheat sheet with the entire list.
Happy Learning!

  Linux Commands Set-01 for SDET/DevOps INterview Questions

  Linux Commands Set-02 for SDET/DevOps

Linux Commands set-03 for SDET/DevOps Interview Questions

• How to search first line of file file3.txt

head -n 1 file3.txt

• How to search last 3 line of file file3.txt

tail -n 3 file3.txt

• HOW TO GET ALL THE LINES IN THE FILE “file3.TXT” which CONTAINS Test?

grep Test file3.txt

• HOW TO GET ALL THE LINES IN THE FILE “file3.TXT” which has the word Test?

grep -w Test file3.txt

• HOW TO GET ALL THE LINE number IN THE FILE “file3.TXT” which has the word Test?

grep -w -n Test file3.txt

Top 21 GIT interview questions: Click Here

• How to provide CHMOD?

It is used to change read, write and execute permission 

0: no permission

1: execute

2: write

3: write and execute

4: read

5: read and execute

6: read and write

7: read, write and execute

• What is top command ?

It is same as Task Manager in windows machine. The output will look like below

• rmdir command vs rm command?

The rm command is used to delete directories and the contents within them but rmdir only allows you to delete empty directories.

•  What is the use of traceroute in Linux?

Click Here For Answer

• How to edit a file in Linux?

Use vi editor, for example let we want to edit file with name as file3.txt then we can use below steps:

-   vi files3.txt

- Use “i” to insert inside editor

- Press esc to come out of editor mode and then use :wq

- :wq : save the file and quit

Infact you can use :q or :w for below-->

:w :save the file

:q quit without saving

Tips: K j h l to move cursor inside vi editor (up/down/left/right)

Know About DevOps-Click Here

•  How to create a file with name as file3.txt?

touch file3.txt or cat > file3.txt

• What is the use of PWD command?

Use the pwd command to find out the path of the current working directory,  it  will return an absolute  path like :/Users/Sishukla

 Linux Commands Set-01 for SDET/DevOps INterview Questions

 Linux Commands Set-02 for SDET/DevOps

Linux Commands set-03 for SDET/DevOps Interview Questions

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