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Find man page bash

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A man page short for manual page is a form of software documentation usually found on a Unix or Unix-like operating system. Topics covered include computer programs including library and system calls , formal standards and conventions, and even abstract concepts. A user may invoke a man page by issuing the man command. By default, man typically uses a terminal pager program such as more or less to display its output. Because man pages are distributed together with the software they document, they are a more favourable means of documenting software compared to out-of-band documentation like web pages , as there is a higher likelihood for a match between the actual features of the software to the documented ones.

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SEE VIDEO BY TOPIC: Linux/Mac Terminal Tutorial: The Grep Command - Search Files and Directories for Patterns of Text

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A man page short for manual page is a form of software documentation usually found on a Unix or Unix-like operating system. Topics covered include computer programs including library and system calls , formal standards and conventions, and even abstract concepts. A user may invoke a man page by issuing the man command. By default, man typically uses a terminal pager program such as more or less to display its output. Because man pages are distributed together with the software they document, they are a more favourable means of documenting software compared to out-of-band documentation like web pages , as there is a higher likelihood for a match between the actual features of the software to the documented ones.

In the first two years of the history of Unix , no documentation existed. The first actual man pages were written by Dennis Ritchie and Ken Thompson at the insistence [ citation needed ] of their manager Doug McIlroy in Aside from the man pages, the Programmer's Manual also accumulated a set of short papers, some of them tutorials e. Later versions of the documentation imitated the first man pages' terseness. For the Fourth Edition the man pages were formatted using the troff typesetting package [3] and its set of -man macros which were completely revised between the Sixth and Seventh Editions of the Manual , [4] but have since not drastically changed.

At the time, the availability of online documentation through the manual page system was regarded as a great advance. To this day, virtually every Unix command line application comes with a man page, and many Unix users perceive a program's lack of man pages as a sign of low quality; indeed, some projects, such as Debian , go out of their way to write man pages for programs lacking one. The modern descendants of 4. There was a hidden easter egg in the man-db version of the man command that would cause the command to return "gimme gimme gimme" when run at a reference to the ABBA song Gimme!

A Man After Midnight. It was introduced in [6] but first restricted [7] and then removed in [8] after finally being found. The default format of the man pages is troff , with either the macro package man appearance oriented or mdoc semantic oriented. This makes it possible to typeset a man page into PostScript , PDF , and various other formats for viewing or printing. It is meant to only support of a subset of troff used in manual pages, specifically those using the mdoc macros.

In February , the BSD community saw a new open source mdoc. For Linux, a man7. Pages are traditionally referred to using the notation "name section ": for example, ftp 1. The same page name may appear in more than one section of the manual, such as when the names of system calls , user commands , or macro packages coincide.

Examples are man 1 and man 7 , or exit 2 and exit 3. The syntax for accessing the non-default manual section varies between different man implementations. On Solaris and illumos, for example, the syntax for reading printf 3C is:. Unix System V uses a similar numbering scheme, except in a different order: [19]. Some sections are further subdivided by means of a suffix; for example, in some systems, section 3C is for C library calls, 3M is for the math library, and so on.

A consequence of this is that section 8 system administration commands is sometimes relegated to the 1M subsection of the main commands section. Some subsection suffixes have a general meaning across sections:. Some versions of man cache the formatted versions of the last several pages viewed. One form is the cat page , simply piped to the pager for display. All man pages follow a common layout that is optimized for presentation on a simple ASCII text display, possibly without any form of highlighting or font control.

Sections present may include:. Other sections may be present, but these are not well standardized across man pages. Manual pages can be written either in the old man macros, the new doc macros, or a combination of both mandoc. This information can be used to implement a semantic search for manuals by programs such as mandoc.

Although it also includes directives to directly control the styling, it is expected that the specialized macros will cover most of the use-cases.

Although man pages are, to troff, text laid out using point Roman type , this distinction is usually moot because man pages are viewed in the terminal TTY instead of laid out on paper. As a result, the "small font" macro is seldom used. The BSD mandoc however only supports bold and underlined text via the typewriter overstrike-with-backspace sequence, which needs to be translated into ECMA by less.

Man pages are usually written in English, but translations into other languages may be available on the system. The GNU man-db and the mandoc man is known to search for localized manual pages under subdirectories. Few alternatives to man have enjoyed much popularity, with the possible exception of GNU Project's " info " system, an early and simple hypertext system.

There is also a third-party effort known as " TLDR pages" that provides simple examples for common use cases, similar to a cheatsheet. This article is based on material taken from the Free On-line Dictionary of Computing prior to 1 November and incorporated under the "relicensing" terms of the GFDL , version 1. From Wikipedia, the free encyclopedia.

Retrieved BSD Cross Reference. Lay summary. The man utility finds and displays online manual documentation pages. Bell Labs. Retrieved 22 December Originally published in Microsystems 5 11 , November Retrieved 30 January Retrieved 22 November Retrieved 25 September Retrieved 25 December November 3, Retrieved 31 December Ask Ubuntu.

Unix command-line interface programs and shell builtins. Hidden categories: All articles with unsourced statements Articles with unsourced statements from February Namespaces Article Talk. Views Read Edit View history. By using this site, you agree to the Terms of Use and Privacy Policy. Library functions, covering in particular the C standard library. Games and screensavers. System administration commands and daemons. C library header files Unix v6.

Finding Files

By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I found myself in a situation where I constantly look for parameters of a command in bash. In order to find all of those I need to go through man,info, or --help option which is laborious and time consuming.

By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information.

The Shell is the command interpreter on Linux systems. The Linux command interpreter or shell is the program users interact with in a terminal emulation window. The terminal emulation window can be one in the workstation's Graphical User Interface mate-terminal on Linux. There are other shells available such as the Bourne Shell, the C-Shell and the TC-Shell, and you can choose to use a different shell if you prefer. They all have similar characteristics but each has its own particular features.

Bash Reference Manual

To use the find command, at the Unix prompt, enter:. Leave the double quotes in. The find command will begin looking in the starting directory you specify and proceed to search through all accessible subdirectories. You may specify more than one starting directory for searching. By default, multiple options are joined by "and". You may specify "or" with the -o flag and the use of grouped parentheses. To match all files modified more than 7 days ago and accessed more than 30 days ago, use:.

GUI Methods

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.

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.

Is it some kind of arcane knowledge, handed down only to initiates after grueling initiations? Well, no. Actually, anyone can learn about Terminal commands, if they know where to look.

Master the command line: How to use man pages

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.

SEE VIDEO BY TOPIC: Linux Command Line Tutorial For Beginners 29 - find command

This text is a brief description of the features that are present in the Bash shell version 5. This is Edition 5. Bash contains features that appear in other popular shells, and some features that only appear in Bash. Some of the shells that Bash has borrowed concepts from are the Bourne Shell sh , the Korn Shell ksh , and the C-shell csh and its successor, tcsh. The following menu breaks the features up into categories, noting which features were inspired by other shells and which are specific to Bash. This manual is meant as a brief introduction to features found in Bash.

Linux Shell Commands

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. If no paths are given, the current directory is used.

Jump to See also - The GNU man-db and the mandoc man is known to search for localized manual pages under subdirectories. (Overview). Alternatives[.

On Unix-like operating systems, the find command searches for files and directories in a file system. Within each directory tree specified by the given path s, it evaluates the given expression from left to right, according to the rules of precedence see " Operators ", below until the outcome is known. At that point find moves on to the next path until all path s have been searched.

man command in Linux with Examples

Section-num : Since a manual is divided into multiple sections so this option is used to display only a specific section of a manual. So this option gives the section in which the given command is present. In this example you can move through the manual pages sections i.

find(1) - Linux man page

The Modules package provides for the dynamic modification of the user's environment via modulefiles. Each modulefile contains the information needed to configure the shell for an application. Once the Modules package is initialized, the environment can be modified on a per-module basis using the module command which interprets modulefiles. Modulefiles may be shared by many users on a system and users may have their own set to supplement or replace the shared modulefiles.

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Use the Unix find command to search for files

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