CentOS Linux Server Guide

Displaying file content with scroll function in CentOS Linux

less command is the enchanced version of more command.

The less command + Up or Down arrow key operate similar as scroll bar. This will ease your viewing on the content of the file
This command different from cat and more command. Using less command, you will can scroll the the entire content of the file UP and DOWN arrow key.

Command and Options:

less [options] filename

Option:

Options Description

-s squeezing multiple blank lines into one

-E quit the view mode session after reaching end of file (EOF)

-c clear the screen from the top for next display

+/character string specifies a string that will be searched for before each file is displayed, and displays text text two lines before the string appears at first time

Examples:

The the following example will display file content on screen. If the file content is more than a page, the command will let you scroll down or up using arrow key.

less mail.log

Keyboard Operations:

Keyboard key function

Up Arrow Key scroll up the screen output a time

Down Arrow Ket scroll down the screen output a time

q quit the view operation mode

Back to Managing Files and Folders in CentOS Linux

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