Fix - bash: man: command not found

If you are using a Linux distribution such as Ubuntu, CentOS, or Fedora and when you run man command you get bash: man: command not found, the most common reason is man pages are not installed.

How to install man package on Linux

Based on which Linux Distribution you are using make use of the package manager to install man

# yum install man

# dnf install man

# apt install man

# apk add man

# yum install man

....

=================================================================================
 Package Arch Version Repository Size
=================================================================================
Installing:
 man-db                         aarch64                    2.6.3-9.amzn2.0.3                       amzn2-core                    556 k
Installing for dependencies:
 groff-base                     aarch64                    1.22.2-8.amzn2.0.2                      amzn2-core                    939 k
 less                           aarch64                    458-9.amzn2.0.2                         amzn2-core                    121 k
 libpipeline                    aarch64                    1.2.3-3.amzn2.0.2                       amzn2-core                     53 k

Transaction Summary
=================================================================================
Install  1 Package (+3 Dependent packages)

Total download size: 1.6 M
Installed size: 6.5 M
Is this ok [y/d/N]: y
...
Downloading packages:
...
Installed:
  man-db.aarch64 0:2.6.3-9.amzn2.0.3
Complete!

If the man database is installed, try the man command again and it should work,

# man ls

LS(1) User Commands LS(1)

NAME
       ls - list directory contents

SYNOPSIS
       ls [OPTION]... [FILE]...