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Find something in man page

A very useful aspect of the Linux command line is that the documentation for almost all command line tools is easily accessible. These documents are known as man pages, and you can easily access them through the command line using the man command. In this tutorial, we will discuss the basics of man using some easy to understand examples. But before we do that, it's worth mentioning that all examples in this article have been tested on Ubuntu The man command gives users access to manual pages for command line utilities and tools.

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SEE VIDEO BY TOPIC: Man: How To More Effectively Make Use Of Man Pages

find(1) - Linux man page

Jump to navigation. It's easy to get into the habit of googling anything you want to know about a command or operation in Linux, but I'd argue there's something even better: a living and breathing, complete reference, the man pages , which is short for manual pages. The history of man pages predates Linux, all the way back to the early days of Unix. Man pages also have a reputation of being terse and, in a way, have a language of their own.

Just like Unix and Linux, the man pages have not been static, and they continue to be developed and maintained just like the kernel. Even so, users generally don't need to know the section where a particular command lies to find what they need.

The files are formatted in a way that may look odd to many users today. Originally, they were written in in an old form of markup called troff because they were designed to be printed through a PostScript printer, so they included formatting for headers and other layout aspects.

In Linux, groff is used instead. If you look up the man page for the command man , you'll see the file man. To access a man page, type a command such as:. This uncompresses the man page, interprets the formatting commands, and displays the results with less , so navigation is the same as when you use less.

To explain how to interpret a typical man page, let's use the man page for ls as an example. Under Name , we see. Any element that occurs inside brackets is optional. The above command means you can legitimately type ls and nothing else. The ellipsis after each element indicates that you can include as many options as you want as long as they're compatible with each other and as many files as you want.

For example:. Under Description , we see a more verbose description of what the command does, followed by a list of the available options for the command.

If we want to use this option, we can either type the short form syntax, -a , or the long form --all. Not all options have two forms e.

When you want to use multiple options, you can either type the short forms with spaces in between or type them with a single hyphen and no spaces as long as they do not require further sub-options.

The command tar is somewhat unique, presumably due to its long history, in that it doesn't require a hyphen at all for the short form. After all, there is much more to man pages than just commands. Our latest Linux articles. While the documentation for these is even more terse and compact, overall it contains similar information. Ah, no, PostScript printers also did not exist when troff was invented.

They are one of the biggest turn-offs to using Linux. Linux needs constructive help pages. Sounds like Google is your friend. For many commands, a more extensively written documentation would be very large. It's got a bunch of command examples, and you can add more easily, and even contribute examples back. Combined with man pages, it's a pretty complete reference set.

A well-written man page is a thing of beauty. An user doesn't need Googled examples if the man has clear, concise writing. Examples may be included in the man page if it's especially troublesome, otherwise -- but if you have to look up a Googled script-kiddie example, you're not really understanding the way the command works.

I'm surprised nobody has mentioned man2html yet It took a little setting up initially, but as previously mentioned here: MAN pages are a great example of how NOT to write manuals. I find man2html very useful I often have a web browser window open anyway, as well as a custom "home" page with various search boxes. It has become difficult to find and install these days, but my favourite viewer for man pages was xman.

Yes the athena widgets are a bit clunky and it is datet but still it offered an easy alternative to just plain shell. How to use a man page: Faster than a Google search How to use a man page: Faster than a Google search. Linux manual pages are easier to use than you think and hold a wealth of information. Image by :. Internet Archive Book Images. Modified by Opensource. Get the highlights in your inbox every week. Man pages are divided into sections referenced by numbers: General user commands System calls Library functions Special files and drivers File formats Games and screensavers Miscellanea System administration commands and daemons Even so, users generally don't need to know the section where a particular command lies to find what they need.

To access a man page, type a command such as: man man for example, to show the man page for man. Breaking down a man page To explain how to interpret a typical man page, let's use the man page for ls as an example. Under Name , we see ls - list directory contents which tells us what ls means in the simplest terms. More Linux resources. Topics Linux. About the author. Greg Pittman - Greg is a retired neurologist in Louisville, Kentucky, with a long-standing interest in computers and programming, beginning with Fortran IV in the s.

When Linux and open source software came along, it kindled a commitment to learning more, and eventually contributing. He is a member of the Scribus Team.

More about me. Recommended reading Serial communication on modern Linux. Scan your Linux security with Lynis. Start using systemd as a troubleshooting tool. Getting started with FreeBSD as a desktop operating system. Using the systemctl command to manage systemd units.

Anon on 12 Jul Permalink. Googling comes with example, most man pages don't. John5g6 on 13 Jul Permalink.

Greg Pittman on 14 Jul Permalink. Seth Kenlon on 13 Jul Permalink. I use man pages. Some are better than others. Fionn on 13 Jul Permalink. Michael on 16 Jul Permalink. Rolf on 18 Jul Permalink. Try to use a search engine that respects your privacy. Ahmad Haghighi on 11 Aug Permalink. Erwin on 20 Jul Permalink. Most often you don't need a Search Engine! Just RTFM :. Subscribe to our weekly newsletter Get the highlights in your inbox every week.

GUI Methods

Command line users are undoubtedly familiar with man pages, or manual pages, that contain details, help , and documentation to specified commands and functions. Referencing a man page can be essential when trying to learn proper syntax or how a command works, but with how large some manual pages are it can be a real drag to scroll through the entire man page to try and find a relevant portion. Note the flag is a capital -K, the string can be anything. Any matches to the syntax in the current man page will be highlighted. And for those who use Terminal app, remember you can also search and launch manual pages from the Terminal Help menu directly, which would then allow you to use the aforementioned string search to look within a help doc to get further details.

Click here to browse the author's latest version of this document. Corrections and suggestions welcome! This HOWTO explains what you should bear in mind when you are going to write on-line documentation -- a so-called man page -- that you want to make accessible via the man 1 command.

Jump to navigation. It's easy to get into the habit of googling anything you want to know about a command or operation in Linux, but I'd argue there's something even better: a living and breathing, complete reference, the man pages , which is short for manual pages. The history of man pages predates Linux, all the way back to the early days of Unix. Man pages also have a reputation of being terse and, in a way, have a language of their own. Just like Unix and Linux, the man pages have not been static, and they continue to be developed and maintained just like the kernel.

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This guide shows how to navigate man pages using the man command. Everyone at some point in their Linux life has used it: the man command. However, while the man program itself appears to be rather simplistic in its construct, it has a few extra abilities than just simply scrolling through the page. This document hopes to help shed some light on these capabilities. Within these directories are some folders with the structure manX where X is the section number. For example, a standard man layout might look like so:. The actual section numbering appears fairly standard. However, notice that there is a mann and some man p folders. The following table lists the above man page directories and what is contained within them:.

Introduction

Search a folder hierarchy for filename s that meet a desired criteria: Name, Size, File Type - see examples. GNU find searches the directory tree rooted at each given file name by evaluating the given expression from left to right, according to the rules of precedence see Operators , until the outcome is known the left hand side is false for AND operations, true for OR , at which point find moves on to the next file name. The -H, -L and -P options control the treatment of symbolic links. That argument and any following arguments are taken to be the expression describing what is to be searched for.

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Manual pages are the canonical type of documentation for Unix systems. They are a bit arcane, but for a technology several decades old, they've held up quite well. The arcane bit is the markup language.

Finding Files

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SEE VIDEO BY TOPIC: Linux Video Man Pages - find

This file documents the GNU utilities for finding files that match certain criteria and performing various operations on them. This file documents the GNU utilities for finding files that match certain criteria and performing various actions on them. This manual shows how to find files that meet criteria you specify, and how to perform various actions on the files that you find. The principal programs that you use to perform these tasks are find , locate , and xargs. Some of the examples in this manual use capabilities specific to the GNU versions of those programs. Many other people have contributed bug fixes, small improvements, and helpful suggestions.

Linux man Command Tutorial for Beginners (8 Examples)

By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. It only takes a minute to sign up. Pay attention to the section number: Suppose you want help on printf. The bash version of printf is in section 1, the C version is in section 3 or 3C. If you don't know which one you want, type man -a printf , and all manual pages will be displayed.

Jul 12, - It's easy to get into the habit of googling anything you want to know about a command or operation in Linux, but I'd argue there's something.

By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Ask Ubuntu is a question and answer site for Ubuntu users and developers. It only takes a minute to sign up. Patterns can be regular expressions , for example, you could search for the word "option" by typing.

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