Man pages are the documentation pages that come preinstalled with almost all substantial Unix and Unix-like operating systems
Questions tagged [manpage]
486 questions
2
votes
1 answer
how can I install section 0p of man pages?
On my pc with debian 11 installed, I only have sections 1 to 9 of the manual. However on the online linux manual there's also a section 0p containing the C header files, in which I am interested: is it possible to install section 0p locally?
The…
Daniele D'Ugo
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2
votes
1 answer
What is unlocked_stdio in C?
So, I was looking for random linux manual pages, when I encountered this weird one, you can see it by executing "man unlocked_stdio", or you can view it in your browser by going to this page
So, what is this for? It has weird functions like…
dfmaaa1
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2
votes
1 answer
What exactly is the data parameter of the gluTessVertex()?
Reading the manual page of the gluTessVertex(), the definition goes like this:
void gluTessVertex( GLUtesselator* tess, GLdouble * location, void * data);
I would imagine that the location is the vertex and for data, at least to me, it sounds like…
Alexis Wilke
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2
votes
2 answers
is there a special search command for options and commands in man-pages (in less)?
Question: using the less command in any linux shell (i'm using bash as probably most people do), is there a way to search a file only for it's commands or options?
So, to be more precise:
if i want to quickly find the description for one special…
bytingStyles
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2
votes
0 answers
where to look for docs of write function of C
I did man open it shows the proper function with the arguments and details.
But when I do man write it shows the write command and not the definition
for the C function which is used like write(fd, a, length)
Where do I access the Docs for this C…
pensee
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- 4
2
votes
1 answer
Where is the man page for the format specifiers in the C function printf?
I cannot find the section for format specifiers in the C printf function. I've done a man printf on my Linux distro and it doesn't provide that information.
So far, I've just been googling everytime I need to find out a format. I'm sure that this…
Al-Baraa El-Hag
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2
votes
1 answer
How can I define sections without === Headings for RDoc::usage()?
I like to generate man pages using '--help' output via help2man and txt2man. Ruby's RDoc system is very convenient, but I can't seem to configure RDoc::usage in exactly the way that I want. Here's a sample script:
#!/usr/bin/env ruby
#
# ===…
guns
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2
votes
1 answer
Is it possible to not-install docs with ExeUtils::MakeMaker?
I'm looking into setting up Perl micro services with Docker and Alpine. Alpine's convention is not be weighed down by docs/man pages by default.
If my Makefile.PL uses ExeUtils::MakeMaker is there a way to not-install docs?
Evan Carroll
- 78,363
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2
votes
3 answers
gettimeofday() - Why use both seconds and microseconds?
I need to use the function gettimeofday for a home assignment, and after reading the man page and looking some online examples, I can't see why people sometimes use both the tv_sec member of the struct and tv_usec member of the struct.
The man page…
Tegernako
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2
votes
2 answers
In macOS, how can I get the manual (man) page of the original (BSD) command when I have installed a GNU alternative?
So I have installed GNU coreutils like so : brew install coreutils
Now I have 2 versions of my core utilities.
For example :
$>which -a stat
/usr/local/opt/coreutils/libexec/gnubin/stat
/usr/bin/stat
/usr/local/opt/coreutils/libexec/gnubin/stat is…
Jonathan Daigle
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2
votes
1 answer
Why does Linux NETLINK man page provide C++ examples but not C?
I dealt with netlink API and examine its man pages netlink(3) and netlink(7).
Suddenly I faced with such construction:
struct msghdr msg;
msg = { &sa, sizeof(sa), &iov, 1, NULL, 0, 0 };
I tried it in C, but it gives the error:
error: expected…
z0lupka
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2
votes
1 answer
No man pages available even though clearly there
I love the fish shell. It makes perfect sense to me, but there's one problem I've been having.
No matter what I try, I can't get man to work. When I type
man ls
for example, I get No manual entry for ls. Same for every other command.
On bash, of…
Thomas Jay Rush
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2
votes
0 answers
how come "--help" doesn't work on new catalina zsh shell
typing:
zsh --help
gives me the expected:
Usage: zsh [] [ ...]
Special options:
--help show this message, then exit
--version show zsh version number, then exit
-b end option processing, like --
-c …
Fadhl Al Eryani
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- 5
2
votes
1 answer
Extract example from python help into ipython session
In ipython I can run something such as
import pandas as pd
pd.DataFrame.join?
and view help for DataFrame.
At the end of the help file there are often examples, such as
Another option to join using the key columns is to use the `on`
parameter.…
baxx
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2
votes
1 answer
man: MANPATH environment variable list too long (manpath list too long)
When having excessively long MANPATH env-vars I end up in a problem with this error:
$> man
man: manpath list too long
To figure out when the manpath list is too long I created this small script:
#!/bin/bash
export MANPATH=
for i in…
nickpapior
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