Question

Linux: Regular Expressions

file name is studentsyslog.txt

Use a regular expression and grep or egrep to filter the file so the output displays only the items requested. Put your full command in the space provided.

1. Display only the lines which contain the word CUPS
   
   
   

Answer 1

• As per given, File name is studentsyslog.txt
• In Linus, Regular expression is nothing but a string that can be used to retrive perticular sequence of output.
• grep is one of Regular expression commands.

As per requirement we need to filer the file so that output displays only the lines which contain the word CUPS in given file.

Here is there is no position of word mentioned like Sarting with , ending with..

Let us assume our present working directory is same as file exists. So the command is :

grep 'CUPS'  studentsyslog.txt

If PWD is not as directory which file exists,

grep 'CUPS' /path/studentsyslog.txt