Assume “record.txt”  has several employees information such as name, email, mobile, street, city, etc.  Write a Bash script that takes the “record.txt”   file as input from the command line. Find mobile numbers from the text file and display all mobile numbers only. The mobile number format is 123-45-67890.

What is a POS?

Which option is used to specify the directory where files should be extracted in the tar command?

What is the output of the following script:

Write a short bash script that displays the sum of only even numbers from 10 to 100 using the concept of bash for loop and continue statement. 

What does the -v option do in the grep command?

Which option is used to append files to an existing tar archive?

To rename a file named “old.txt” to “new.txt,” what command would you use? 

If a user has no execute permissions for a particular directory, which of the following is true

Which command is used to delete a directory with some files?