Man Pages

What are Linux Man Pages?


  • The Man Pages on Linux essentially document everything. It's a manual for all things Linux - commands, functions, system calls, etc.

Using the Man Pages

  • man nmap - Will give you detailed information on the nmap tool.
NMAP(1) Nmap Reference Guide NMAP(1)
nmap - Network exploration tool and security / port scanner
nmap [Scan Type...] [Options] {target specification}
Nmap (“Network Mapper”) is an open source tool for network exploration
  • man -k ssh - This searches man for the keyword, ssh. It is equivalent to apropos.
└──╼ $man -k ssh
authorized_keys (5) - OpenSSH daemon
ciscodump (1) - Provide interfaces to capture from a remote Cisco rout...
git-shell (1) - Restricted login shell for Git-only SSH access
Net::DNS::RR::SSHFP (3pm) - DNS SSHFP resource record
Net::SSH2 (3pm) - Support for the SSH 2 protocol via libssh2.
  • apropos 'ssh daemon' - This is equivalent to man -k.
└──╼ $apropos 'ssh daemon'
authorized_keys (5) - OpenSSH daemon
sshd (5) - OpenSSH daemon
sshd (8) - OpenSSH daemon
sshd_config (5) - OpenSSH daemon configuration file