In this article, we’ve given a quick overview about man pages.
A biggest challenge to people who wants to learn Linux, How to find the right commands. On Red Hat servers, there’re around 2000 commands are available. So you need to do something to find out the right command.
To do the same, we have to use the command man.
Most of the Linux commands are documented in man pages. Really you don’t know which command I need to use, Don’t worry about it. Please use below command to search a keywords.
man -k <keyword>
For example, To want to set a date on your server. Use,
man -k date
date (1) - print or set the system date and time date (1p) - write the date and time ddate (1) - converts Gregorian dates to Discordian dates
You will get a huge list of commands after searching keyword. To find out the exact one, You have to know about the man page sections. To do the same, please use below command.
You have to concentrate about section 1, 5 & 8.
1 Commands (Programs) Those commands that can be executed by the user from within a shell. 5 File formats and conventions The format for /etc/passwd and other human-readable files. 8 System management commands Commands like mount(8), many of which only root can execute.