Manuals or other information for system users detailing software features and functionality.

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17
votes
3answers
1k views

Documentation: Architecture of Linux Session

I'm looking for a good overview documentation describing the the stack of daemons and services involved in a modern Linux session. Although having read various documentation about dbus, and systemd, ...
1
vote
2answers
21 views

How can I learn the purpose of the various kernel processes?

(Related: What do the brackets around processes mean?) I'd like to really understand what I'm looking at better. I'd rather not need to dig through actual kernel source code just for a quick ...
2
votes
1answer
37 views

Why can't I fetch the gcc-doc package on Debian?

When I was testing some code snippets from Stack Overflow, I realized that I haven't any man-pages for GCC on my Debian System. But when I try to get them from Debian's repositories it outputs E: ...
40
votes
21answers
18k views

Tricks and tips for finding information in man pages

Does anyone have any tricks and tips for finding information in man pages?
0
votes
1answer
10 views

Comprehensive documentation of wpa_supplicant.conf with description of all parameters and default values

I there any up to date, comprehensive documentation of wpa_supplicant which describes all possible parameters of wpa_supplicant.conf and it's default values. The man page of wpa_supplicant.conf ...
2
votes
2answers
868 views

Where can I find a list of USB error codes?

Every time I boot Debian, the boot log shows a bunch of xhci_hcd problems, and messages like usb 3-13: hub failed to enable device, error -22 usb 3-13: device descriptor read/8, error -61 I'm ...
2
votes
1answer
32 views

How can I get a help message for zsh builtin's?

If I want to get a brief usage message for a bash builtin, I can use help <builtin> at a command prompt, e.g. $ help export export: export [-fn] [name[=value] ...] or export -p Set export ...
1
vote
1answer
31 views

What is the difference between man and --help? [duplicate]

I used both command lines and displayed the same output
7
votes
1answer
270 views

List of error messages available for a command in Unix

Is it possible to find out what error messages a command includes? For example I want to see the list of error messages that mkfs.ext3 command will print in different error situations. Shall I look ...
0
votes
2answers
35 views

Centralized system information

Does anyone know of a software capable of keeping track of Linux/UNIX systems configurations centralized on a server? Possibly with a web GUI and history capabilities? I am looking for something that ...
4
votes
4answers
2k views

How to search the whole manual pages on Linux?

Sometimes I need to look up certain words through all the manual pages. I am aware of apropos, but if I understand its manual right, it restricts search to the descriptions only. Each manual page ...
11
votes
1answer
163 views

Why is the circumflex/caret character used as a symbol for Ctrl?

I started using the Linux console a long time ago but I never questioned myself about the circumflex aka caret character (^). I'd like to ask why it's used as a replacement for the word Ctrl. I ...
3
votes
1answer
592 views

Where can I find detailed documentation on Linux signals?

When we do kill -l we get a list of all the signals that are supported, but is there any man page that describes each signal in detail?
38
votes
3answers
2k views

Purpose of “ASCII text, with overstriking” file format

After downloading the source code for Bash, I was browsing through the doc directory and came across the following files: bash.1 is a regular troff file used to build the man page. bash.0 is like a ...
7
votes
1answer
202 views

Full list of tput options

I wanted to hide the cursor, and I was aware of tput command. I did search its man page. On searching the Internet, I found $ tput civis # to hide the cursor $ tput cnorm # to bring back the cursor ...
3
votes
1answer
94 views

Linux kernel API changes/additions

I'm trying to find a webpage or docs or XYZ that will allow me to see all the API changes/additions/removals between two kernel versions. I found http://kernelnewbies.org/LinuxChanges, but I'm not ...
3
votes
2answers
9k views

List of available command options?

I'm currently setting up my first web server without a control panel and so far things are going pretty good! I was just wondering if anyone could direct me to somewhere that explains all of the ...
0
votes
3answers
34 views

How to get help for bash variables use from a command line?

Bash has some special or predefined variables, such as $? and $#. How to know the meaning of those variables use build in command instead of searching online web pages? I have try to use this: ...
1
vote
2answers
52 views

Where is the hash command documentation?

When I type man hash it shows me man builtin. I'm trying to understand this line: hash -r 2>/dev/null || true What hash -r does and what it returns. Context: export PATH="$PWD/bin:$PATH" hash ...
0
votes
0answers
83 views

avconv output_volume option - trying to understand the man page

I'm trying to increase the volume of my input .wav file by means of the output_volume option within the avconv command. I would like to increase the volume by 6 dBs similarly as demonstrated in the ...
2
votes
1answer
40 views

Where is wpa-conf documented?

I use wpa-conf in /etc/network/interfaces to make the WLAN interface automatically connect to the AP: # This file describes the network interfaces available on your system # and how to activate them. ...
4
votes
3answers
2k views

How do I get the list of exit codes (and/or return codes) and meaning for a command/utility?

Is there a way I can do what stated in the title from the terminal commands, or will I have to look into the codes?
1
vote
2answers
60 views

How are GNU documents in PDF formats created?

Some GNU software doesn't offer PDF files for its manual, e.g. http://www.gnu.org/software/findutils/manual/find.html Some does, and their PDF files have bookmarks/outlines, e.g. https://www.gnu.org/...
6
votes
3answers
2k views

What is the “caller” command?

I'm running Ubuntu 10.10 with openbox running on top. I noticed today a command called caller, however there is no man page, it does not respond to any input (or --help) and whereis doesn't find it. ...
2
votes
2answers
40 views

Reference manuals for network configuration on Fedora/CentOS/RHEL?

Every time I need to configure a network interface on Fedora/CentOS/RHEL I need to access its online documentation to check which configs and values I should use in the /etc/sysconfig/network-scripts/...
2
votes
0answers
46 views

Look up documentation on C types?

I'm reading over documentation on concurrency in C and trying to learn how to do things concurrently. As I'm reading, I'm coming across types I've never come across before like tss_t, etc. Is there ...
1
vote
0answers
67 views

Write my own sound card driver [closed]

I would like to write my own sound card driver, in order to use my output jack as a PWM (to control a motor). When I run "lspci", the sound card is : Audio device: Intel Corporation 5 Series/3400 ...
1
vote
0answers
146 views

How do I convert the complete AMD64 Gentoo Handbook into a PDF from the command-line?

I have been writing shell scripts for converting the AMD64 Handbook of Gentoo Linux to PDF and this is my current shell script: function ghand { # Input 1 is the architecture # Input 2 is the ...
12
votes
2answers
865 views

What is the “2001 article” for blocking “automated retrieval programs” referred to by the wget man page?

The wget man page states this, under the section for the --random-wait parameter: Some web sites may perform log analysis to identify retrieval programs such as Wget by looking for ...
21
votes
1answer
567 views

Is there any manual page for colored shell output?

You know, that colorized output made by special char sequences, for example: echo -e "\e[34m Hello\n \e[0m" This will produce word "Hello" colored in blue. To do this I had to search on the web, ...
0
votes
1answer
36 views

What is docs package and how to use it?

There are some docs package in repository like: glib2-docs linux-docs php-docs python-docs What I can undestand form its name (docs) is it kind like documentation or something for the package. And ...
1
vote
1answer
59 views

`man` pages for languages other than C (e.g, python, R, javascript, etc)?

man pages are a phenomenal resource while programming in C on Linux. While looking at someone else's code, if you see something foreign you can immediate research it in another terminal with $ man 3 ...
1
vote
2answers
47 views

Is there a standard way of locating a package's config files?

Just curious if there is a standard way of locating where a package puts the config files for a program (assuming the documentation for the package doesn't include this information). The reason way I ...
0
votes
2answers
143 views

Windows Internals for Linux [closed]

I've recently been reading Windows Internals version 6 (from Microsoft Press), and found it thoroughly enjoyable. I'm now using Kubuntu on my work machine, and as such have some desire to learn a bit ...
0
votes
1answer
96 views

How to do doxygen documentation?

My boss told me do documentation in doxygen and i am new to it. i did google and found you can do codes documentation in doxygen, but what about Details and text documentation which doesn't has codes. ...
16
votes
5answers
2k views

Where is the Programmer's manpage for the open C Function?

I am using debian8 (jessie) and I went to find read the manpage for open. instead I got a warning: $ man 3 open No manual entry for open in section 3 See 'man 7 undocumented' for help when manual ...
4
votes
1answer
555 views

What is udev “urbnum”?

When making a query to the udev system, one attribute that can show up is the urbnum ie: ATTRS{urbnum}=="538" I've looked through the documentation, but cannot find any mention of it. Are the ...
0
votes
2answers
63 views

Matching btrfs documentation for the version I have?

I want to see if the formatting details I specified are doing what I thought, and generally inspect things after a huge amount of copying to the btrfs file system. Looking through docs, I see btrfs ...
8
votes
3answers
992 views

viewing info documentation with vim

I'm trying to use the ManPageView addon to view info documentation within vim. Although I find ManPageView very useful for, well, viewing manpages, its info-reading functionality doesn't seem to work ...
0
votes
2answers
42 views

How to find documentation about macros in the manpages?

I've been working on a Routing Protocol and looking at legacy code for different routing protocols. I constantly find different macros where I it is very hard to find it in the header files because ...
5
votes
2answers
2k views

Is it safe to empty /usr/share/doc?

I don't need the man pages and documentations on my debian server. Is it save to empty that folder completely to free up some disk-space, by replacing all files in that folder with empty dummy files. ...
2
votes
1answer
260 views

In what section do descriptions of C data-structures go?

I read the following answer QA about what the various sections of the man-pages represent: What do the numbers in a man page mean? Upon reading it, I wasn't sure what section is for descriptions of C ...
2
votes
3answers
65 views

Find command associated with configuration file

Let's say I didn't know what ~/.bashrc is for. Is there a command that would tell me what the file is/does? Other than googling for an answer. The man pages have a files section, maybe there is a way ...
2
votes
1answer
88 views

How to refresh file list in moc?

In moc (music on console), I want to refresh the file list, because I have renamed all files to lowercase and moc still shows uppercase for all files that begin with a number. The help command (h) ...
3
votes
2answers
2k views

Where are the command-line options to perl documented?

On StackExchange I came across a command that looked like this: perl -pe ... Curious what the -pe options meant, I did man perl. This is the synopsis of that man page: perl [ -sTtuUWX ] [ -...
1
vote
1answer
35 views

How do I specify command invocation for a mandatory short or long option?

I'm writing a specification for a tool that needs a -f / --foo option with a mandatory argument BAR, so for example these are valid calls: tool -f BAR tool --foo BAR How do I specify this syntax in ...
10
votes
2answers
1k views

Where can I find official POSIX and UNIX documentation?

I am looking for official documents on all POSIX standards and specifications. I would like to be able t read the docs to get a better understanding of UNIX systems and how they work at a low level. I'...
5
votes
2answers
796 views

How do I look up exit codes for applications?

I'm having difficulty locating a comprehensive up-to-date list of error codes from Bash. e.g.: $ udevadm info /dev/sdx; echo Exit code $? Unknown device, --name=, --path=, or absolute path in /dev/ ...
2
votes
2answers
680 views

What do square brackets in bash case statement mean?

http://ss64.com/bash/case.html SHOWS case word in [ [(] pattern [| pattern]...) command-list ;;]... esac What are square brackets indicating? Other websites omit them (i.e. no [[(] etc.) http://...
30
votes
4answers
4k views

How can I add man page entries for my own power tools?

I have no idea about how I can make my home-grown specialist scripts (written mostly in Bash and Perl) available through the man pages. What procedure would I have to follow, and is there a ...