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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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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Why does the traceroute6(8) man page refer to a non-existent traceroute(8) man page?

I would like to be able to execute the following from a shell command-line: man 8 traceroute but nothing shows: $ man 8 traceroute | col -b No manual entry for traceroute in section 8 I eventually ...
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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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search in the description of available commands in linux [duplicate]

I was wondering if there is a command that finds a suitable command.To be more precise I am looking for something like whatis command, which provides a briefing summary of a command. For example, if I ...
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Man pages full of UTF-8 characters which cannot be displayed properly

Here is the ATTRIBUTES section of man 3 scanf It looks like man is trying to read it as if it were UTF-8, but the actual man page content is in some other encoding. Can I set the encoding man should ...
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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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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 ...
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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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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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Dev Manpages are not completed

I cannot get 'man aton', 'man argp_parse', etc, but I have 'man memcpy', 'man 7 ip' for example. I've already installed manpages-dev. What packages I still lost to get all the basic C function's ...
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Why can't I get the man page of the crypt function?

On my Fedora system, I can do man 3 crypt and I see the man page of the crypt function. However, when I do the same on Ubuntu it gives me: No manual entry for crypt in section 3 I know that it has ...
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1answer
1k views

How to find cipher keywords in ssh_config(5)

I see in the man page for ssh that I can find the cipher listings in "ssh_config(5)" Where can I find this? Context: I'm attempting to ssh \ sftp into a company's sftp account that they provided me. ...
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How do I install a man page?

After reading How do I manually install a man page file? (there is some ambiguity in this title) I did not get my answer. How to install the related man pages for a certain command? Take the ...
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2answers
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Random freezes in (X)Ubuntu 18.04 caused by filled up RAM

I have a problem with random freezes in (X)ubuntu 18.04(.1) under Kernel 4.19.0 and 4.19.4. When I check 'top' during freeze episodes, I can see that all my RAM and SWAP is slowly beeing consumed by ...
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man command not working in Ubuntu 18.04

My man command is not working at all on my Ubuntu 18.04 machine. Unlike most of the cases I have found described in the internet, where there is an error message after calling man, I do not get any ...
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How to find the manual of a command when `man <cmd>` doesn't work [duplicate]

When man <cmd> or <cmd> --help or <cmd> -h doesn't show you how to use the command, what should you do to get the information you need? For example, the command enable has no manual ...
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2answers
480 views

GCC compiler manual [duplicate]

I'm trying to call the manual of the GCC compiler from the terminal, but I seem to be unable to, I only get error messages when I type: gcc man Surely I'm doing it wrong, but I can't find any topics ...
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955 views

No manual entry for command [duplicate]

By following this Q&A I started using command instead of which when checking for the existence of a program. But man command returns: No manual entry for command Why there is no manual for it ...
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Unable to install manpages-posix-dev as packages are missing [duplicate]

I've been trying to get the manpages for several of the c headers (such as unistd.h), but I can't seem to find their packages. I've done the following, but I'm so confused: sudo apt update and sudo ...
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1answer
307 views

/etc/manpath.config missing when I reinstall manpage

$apt install man apt-get install manpages-zh then apt-get purge manpages-zh $apt purge manpage then $apt install man $apt-get install manpages-zh it shows /usr/bin/mandb: can't open the ...
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No manual entries for recvfrom, sendto, and bind commands in Ubuntu 18.04

I run Ubuntu 18.04 through Oracle VirtualBox. In the terminal man commands for recvfrom, sendto, bind do not show any manual entries as shown below. rishi@rishi-VirtualBox:~$ man recvfrom No manual ...
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no man pages on kubuntu 18.04

I have just installed kubuntu 18.04 and I have no man pages. I have tried all the different permutations of mandb to update the database, but I am always presented with a blank page. Any help ...
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Is there documentation for chown that is easier to understand?

I am relatively knew to Ubuntu and I want to learn about the chown command, so I tried to read the man chown but I find it very difficult to understand. Is there a document for this that is simpler ...
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How do I access that basic command line tutorial man document?

I need to find that documentation that acts like a simple description and tutorial of how the command line works. It's "man something" I knw that much, so it's a man page, but not an actual command. ...
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In the 18.04/bionic docker container, how do I restore manpages?

When building a container based on the official 18.04/bionic docker image, It appears to be impossible to install manages. even if I explicitly install them, they do not appear to be on the file ...

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