Grep Command
Grep command is one of the powerful linux commands. Grep command is one of the file commands.
In this article i am going to discuss about the grep command.
Command : grep
Usage : To Search a given input string in a file
Syntax : grep string filename
Example : grep regno classdetails
Working : The above command will search for the string regno in the file classdetails
CASE INSENSITIVE
The above stated search for the string regno in the file classdetails is case sensitive search.
In order to do case insensitive search -i is used in the command
Command : grep -i
Usage : Search for the string in a file - Case Insensitive
Syntax : grep -i string filename
Example : grep -i regno classdetails
Working : The above Command will search for the string "regno" irrespective of the case used.
Since grep command has got lot of options, i don't like to confuse you guys with all the options in a single article.
Will share other options in the upcoming post..:)
Have a great day and Have a happy week end dear readers and friends..:)
Praveen Kumar Rajendran
Chennai.
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