Learning Linux Shell Scripting

Pattern matching with the vi editor

For learning pattern matching, we will ensure that the pattern that we will search should be highlighted when the searched pattern is found.

The configuration file for vi is /etc/vimrc.

In the vi editor, give the following command to highlight search:

Sr.	Commands	Description
1	:set hlsearch	This highlights search pattern
2	:se[t] showmode	Show when you are in insert mode
3	:se[t] ic	Ignore case when searching
4	:set noic	Shows case sensitive search

The mentioned user should open the file in vi, press the Esc button so that it goes into command mode and then enter colon followed by these commands.

The following are commands for pattern search and replace:

Sr.	Commands	Description
1