Questions tagged [manpage]

A manpage is a piece of documentation (not just a single page) that comes with most programs installed on Ubuntu.This is invoked with the name of a program to call up a help manual with various sections detailing the operation of the program.

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How to have man pages that use a personal section instead of the usual 1,2,3,etc?

So I have this file that's titled mantest.gz that I wanna keep in $HOME/personal/man_pages so I can run man mantest and see it. I know you have to add the path to your config file (for Ubuntu /etc/...
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man command showing: nothing appropriate

When I type the command man -k which the console display which: nothing appropriate. I using Ubuntu 18.04.3
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Where is the manpage of endsgent?

https://code.woboq.org/userspace/glibc/gshadow/gshadow.h.html I don't find the manpage of endsgent. Does anybody know which package has the manpage for endsgent?
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Change location for man pages

Until Ubuntu 18.04, if you wanted to change the man pages location, you just have to execute something like this (depending on the desired language you wanted, in this case, spanish): sudo apt install ...
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No manual entry for interfaces

I was reading through Ubuntu 20.04 documentation and in the TCP/IP Configuration section there is a tip about man interfaces command. When i try to use it, I get No manual entry for interfaces. I ...
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X11 apps (specifically xman) on a large 4K TV are tiny — how does one upscale x11 apps? OR Have any recommendations for a man page GUI?[Ubuntu 20.04]

OS: Ubuntu 20.04 Display: 4096 × 2160 on a 4K TV Display Settings: Use interface scaling: Double (Hi-DPI) Howdy friends. I am rocking a 65-inch (165cm) TV as a monitor at 4K resolution on Ubuntu 20....
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How to download the manpages of all ubuntu packages at one shot?

Is there a way to download the manpages of all ubuntu packages without installing the packages. I just want to look up the manpages in a non-ubuntu machine. So I don't want to and can not install the ...
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Iterating over man page's parameter options by script

This might be a really stupid question but I really haven't found an answer or even information that would help me with what I am trying to do. I just wanted to know if it is somehow possible to ...
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How to install the `htop` manpage?

I have htop installed via snap, but apparently the man page (man htop) is not installed. Is it possible to install this?
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sudo is required to view manpages when using most as the pager

I've installed most to be used as the default pager to view the man pages. most is exported as the PAGER in .bashrc. When I run a command like man grep I get the following error: man: can't execute “...
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Lack of some manual entries

I tried to find some manual entries e.g. man 3p printf, man stdlib.h (in general any posix section 3 entries, nor C libraries), but I'm getting a message that there are no manual entries for them. The ...
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How to use grep to search for options in a man page? [duplicate]

I want to search for specific options like -s, -f, -l in a manpage and display only the results that contain info on what those options do. I tried this command hoping that the single quotes would ...
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36 views

Uneven spacing in man pages

What I have observed is that there is uneven spacing in the text in the man pages. Between some words there is a single space, where as some words have a double spacing. What I have observed is that ...
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Man page for jdk commands like jshell, jlink

On ubuntu, I have installed java doc via command: sudo apt install openjdk-11-doc But, still can't find any doc via man jlink. Does that means javadoc doesn't include man page for jlink or I didn't ...
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Can I disable mandb index / cache (safely)?

Whatever the man-db cache does, I do not seem to be using it, yet it slows down packet installation. Is there a safe method of disabling that feature?
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How to exclude directory with mandb?

I mounted a relatively slow 9p drive at /mnt/p which is relatively slow (2-4 MiB/s). I run mandb and find that it will access /mnt/p and freeze there: Processing manual pages under /mnt/p/wr/msys2/...
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interpreting “apropos -d” output: manually add /man/ subdirs in /snap to manpath?

I've just run two similar commands, apropos -e nc which results in nc (1) - arbitrary TCP and UDP connections and listens as expected. However, when I run the same command with debug ...
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What does it contain in linux manual's section 9 of Kernel routines

There are 9 sections in Linux manuals. of which, the ninth is Kernel routines [Non standard]. I check my Kubuntu but get no results feedback. $ man -s 9 -k . .: nothing appropriate. What does it ...
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What does dot mean in “man -s 3 -k . ”?

I learned that commands 'man -s 3 -k .' could display all the commands in section 3. $ man -s 3 -k . | nl | tail 1894 y0 (3) - Bessel functions of the second kind 1895 y0f (3) ...
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Ubuntu Server on-line manual incomplete

I've realized that man in Ubuntu Server (Bionic) is incomplete if compared with Ubuntu Desktop (Bionic) version. I searched for some system calls like fork using the command man 2 fork and it return ...
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How to directly run the examples of “man” for a particular function [duplicate]

man function are best way for learning new information in Ubuntu. They are the most extensive source possible. Every man has a section of **Example (in majority of cases),my query is on ways to use it ...
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How to display classic man page from local file with troff format?

I have a file with troff format and would like to recast to man page file.txt: .. c:function:: bool is_module_percpu_address (unsigned long addr) test whether address is from module static ...
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Man doesn't work on Ubuntu 18.04

I recently updated my machine from Ubuntu 16 to 18 Now man doesn't work at all man man man: nroff: Bad system call (core dumped) man: command exited with status 159: (cd /usr/share/man && /...
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apt upgrade command option not explained in man or --help

There is a -u option in this command: apt -u upgrade Can anyone explain what -u option stands here for ? And why isnt' it explained in the man apt
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How to Install Flashforge FlashPrint 3D app in Ubuntu

Sorry.. completely new to linux so go easy.. and none of the .man threads seem to make any sense to me. I have downloaded the flashprint 3d software from flashforge and within the zip file (...
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man shows old version of g++ despite installing newer version

I've installed gcc-9 and g++-9 as written in this answer answer and updated the alternatives as shown in the comment, still when I type man g++ it shows the man page of the previous version. The ...
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MAN pages are not displaying properly

man ls command output My man pages are not displaying properly in Ubunut 16.04 The command line arguments are not displaying, instead of them comma is being displayed as shown in attached image above....
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How to add man page for postgres?

I just install postgres 9.6 inside my /opt directory. I want to show the man page of the postgres. While I type man postgres, it says, No manual entry for postgres. I think this error may arises ...
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Is there any way to get table of contents of a man page?

Some man pages are very big. I want firstly to see table of contents and then go to interesting section. How to do it? For example: $ man -contents ls NAME SYNOPSIS DESCRIPTION AUTHOR REPORTING ...
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How to change Manual pages default font?

When I type man fork, terminal output, but I dislike the default font , how to change into the other font?
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Changing /bin/sh to zsh crashes man pages

Just a general curiosity: Man pages on my Ubuntu 18.04.03 stop working when I change /bin/sh to zsh with following error: man: nroff: Bad system call (core dumped) What I did was: rm -rf /bin/sh ...
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Yelp line is too wide for man pages

I am generally using yelp (the life preserver icon on the desktop) to view system man pages. After I open yelp, I can press Ctrl+L and enter man:man for example to view the man page for the man ...
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What does “-ls” do when used with “find”?

According to man find: -ls True; list current file in ls -dils format on standard output. The block counts are of 1K blocks, unless the environment variable POSIXLY_CORRECT is set, in ...
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How do you know the manpages name for a given package?

Take for instance the python3-requests package. I see that there is /usr/share/doc/python3-requests but I can't seem to figure out the manpages "name". Given an installed package, is there a way to ...
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Can't find the manual for jobs [duplicate]

I have jobs installed in my system and it works indeed. However, when I typed man jobs and pressed enter, the terminal told me No manual entry for jobs Do you have the same problem? Or how can I ...
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414 views

What package provides system call man pages on Ubuntu?

On Ubuntu 18.04, the following commands do not turn up any man pages: man 2 creat man 2 ioctl man 2 chown There are plenty of other examples, but these illustrate the point. I tried a bit of apt ...
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How do I perform a exact match in man page?

For exmaple, I open man page of tar and I want to locate -z quickly. But when I type /-z, things like -i, --ignore-zeros also get matched. So I have to press n several times to reach -z. However, I ...
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Ubuntu 18.04 LTS on my MSI laptop, man command does not work anymore

The installation had no problem and man was working fine till yesterday. However, today the man command does not work anymore. Please help troubleshoot. Thanks mas192
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watch --beep doesn't work

I read watch command's manual page, found -b or --beep: -b, --beep Beep if command has a non-zero exit. So I did: $ watch --beep ls /root Using a non-root account and it doesn't make a sound like a ...
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How to reinstall man pages after deleting them

So I wanted to free up disk space from documentation and followed the instructions in this answer. Basically I did create a file /etc/dpkg/dpkg.cfg.d/01_nodoc which specifies the desired filters: ...
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How to include a file when writing a custom man page?

Currently I just copy the source file for my custom man page into place like this: SOURCE=man/myManPage.1 DEST_DIR=/usr/local/share/man/man.1 sudo install -g 0 -o 0 -m 0644 "$SOURCE" "$DEST_DIR/" yes ...
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man doesn't display man pages; what to do if 'mandb -c' doesn't fix it?

I have an Ubuntu 18.04.2 LTS system that won't display man pages. # man man || echo fail # This AskUbuntu question suggests that I try running mandb -c. mandb -c runs to successful completion, but ...
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Where to get kubectl man pages?

Any suggestion where I can get and install kubectl man pages? Asking Google all the time is getting annoying. I want to be able to see the man page from the command line like: $ man kubectl pods I ...
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Man page requires space to scroll, not arrow keys

On my Ubuntu 18.04 host, running man <command> brings up the man page and I can scroll up and down using the corresponding arrow keys to read the text. On a fresh Ubuntu 18.04 docker image, I ...
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Is --supported-target-version a supported option for mkinitramfs, as shown on the man page?

I am trying to the --supported-target-version option for mkinitramfs. The following errors are being returned: $ sudo mkinitramfs --supported-target-version=4.13.0-15-generic /usr/sbin/mkinitramfs: ...
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Does apps installed via “snap” has man page? [duplicate]

Just installed kubectl via snap: sudo snap install kubectl But, man kubectl shows: No manual entry for kubectl See 'man 7 undocumented' for help when manual pages are not available. ...
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How to view manpage of apt-secure? [duplicate]

I get the message at the end of updating apt: See apt-secure(8) manpage for repository creation and user configuration details And I just want to know where and what command I need to enter to view ...
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2k views

Linux man pages in different languages

My Ubuntu 18.04 is set to Spanish: But man pages are displayed in English, not according to the configuration (Spanish). $ man cp | head -n4 CP(1) User Commands ...
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1answer
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Missing elements in Manpages

I'm using Ubuntu Desktop 18.04. It is really weird, but in every Manpage (also in ksh and sh), there are missing elements such as the program name or flags. I posted also a picture of the incomplete ...
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How can I search the APT man page for options to install [duplicate]

I read the answer wireless - How can I check the information of currently installed WiFi drivers? - Ask Ubuntu and learn a command sudo apt-get install -y hardinfo then I tried to find the option -...

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