How to back on default configuration of man command?

Question

I have executed many commands from this, installed mandoc, those(I guess) or any thing else(which I don't know) have changed my man pages output decoration.

In previous my man pages show SYNOPSIS in bold and all function's name. And outputs text are spread over the terminal window. Now, these features are lost.

Previous output of man malloc -

Current output of man malloc -

Provided that, if I ran PAGER=less man <man_page_name> then the function's name are shown in bold but not spread over terminal window.

Current output of PAGER=less man malloc -

I am using Ubuntu 14.04 and provided some commands outputs mentioned here

$ env is here. I provided this in external link as the output is so large.

$ update-alternatives --display pager

pager - auto mode
  link currently points to /bin/less
/bin/less - priority 77
  slave pager.1.gz: /usr/share/man/man1/less.1.gz
/bin/more - priority 50
  slave pager.1.gz: /usr/share/man/man1/more.1.gz
/usr/bin/pg - priority 10
  slave pager.1.gz: /usr/share/man/man1/pg.1.gz
Current 'best' version is '/bin/less'.

$ man -D malloc

man: invalid option -- 'D'
usage: man [-acfhklw] [-C file] [-M path] [-m path] [-S subsection]
   [[-s] section] name ...

Now, what can I do so that man command works as previous?

`-D` is a perfectly valid option for `man` on Ubuntu 14.04, so did you install another version of `man`? What does `type -a man` output? — muru, Sep 20 '17 at 12:19
@waltinator see the output of `env` provided in my question. `xterm` — alhelal, Sep 20 '17 at 14:20
In your `env` dump (would have been nicer as `env | sort`) that your `PATH` is unreasonably long, fix that. `PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/sbin:...` 1825 chars, 172 dirs, 11 unique. — waltinator, Sep 21 '17 at 08:36
Try it in a "naked" bash shell, with no initialization `bash --norc` — waltinator, Sep 21 '17 at 08:40
@waltinator I don't understand what do you want to say. Would you explain please? — alhelal, Sep 21 '17 at 16:48
@banda-muhammad-al-helal Type the `bash --norc` command, then try your `man` command in that shell. When you're finished, type `exit` or `^D` to exit that shell, and return to your original. — waltinator, Sep 22 '17 at 14:10

How to back on default configuration of man command?

0 Answers0