whereis

Locate the binary, source, and manual page files for a command. More information: https://manned.org/whereis.

• Locate binary, source and man pages for SSH:

whereis ssh

• Locate binary and man pages for ls:

whereis -bm ls

• Locate source of gcc and man pages for Git:

whereis -s gcc -m git

• Locate binaries for gcc in /usr/bin/ only:

whereis -b -B /usr/bin/ -f gcc

• Locate unusual binaries (those that have more or less than one binary on the system):

whereis -u *

• Locate binaries that have unusual manual entries (binaries that have more or less than one manual installed):

whereis -u -m *