whereis

Locate the binary, source, and manual page files for a command.

• 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 *

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