Question

2

No manual entry for chdir

rated 0 times [ 2] [ 0] / answers: 1 / hits: 1438 / 2 Years ago, sat, may 21, 2022, 5:26:39

I tried to look up for this common error, but I was shocked to find out there is no one simple solution, all are very specific to the issue.

My issue is, on Ubuntu 20.04 LTS, that I try to run man chdir, but get this error message No manual entry for chdir.

I tried this set of commands:

sudo apt-get install -y man-pages

sudo apt-get install -y man-db

mandb

Yet, it didn't help.
Please, what am I missing out?

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doredtness

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answered 2 Years ago hentor · Accepted Answer

The following chdir-related manpages should be available:

$ man -k chdir

chdir (2)            - change working directory

chdir (3posix)       - change working directory

(man section 2 is for kernel-provided system calls, whereas section 3 is for calls provided by external libraries).

We can see where a man page lives (on a system that does have it) using man -w:

$ man -w chdir

/usr/share/man/man2/chdir.2.gz



$ man -s 3posix -w chdir

/usr/share/man/man3/chdir.3posix.gz

Then let's see what packages provide them:

$ dpkg -S $(man -w chdir) $(man -s 3posix -w chdir)

manpages-dev: /usr/share/man/man2/chdir.2.gz

manpages-posix-dev: /usr/share/man/man3/chdir.3posix.gz

So you likely need to install the manpages-dev package:

Description: Manual pages about using GNU/Linux for development

 These man pages describe the Linux programming interface, including these two sections:

  2 = Linux system calls.

  3 = Library calls (note that a more comprehensive source of information

      may be found in the glibc-doc and glibc-doc-reference packages).