Linux is a kernel. It is open-source and free. So, you may download the source, make changes, build the source and put it on your computer. Linux is so powerful that most of the servers are running on Linux.
Basic Linux Interview Questions
What is Linux?
How is Linux different from other Operating Systems?
Name some of the popular flavors of Linux?
Which flavor of Linux have you used previously?
Where are the environment variables stored?
Linux Basic Commands
How do you create an alias for a command?
What is the grep command?
Write a regular expression with grep command to search files containing the text “HelloWorld”.
Linux File System Interview Questions
What is the command to get the absolute file path?
Open a terminal and run the command readlink -f fileName.ext
. The absolute file path will be echoed in the terminal.
What is the command used to change file permissions?
chmod
command can be used to change file/folder permissions. chmod
is Change the file mode bits of each given file according to mode.