Library: GNU bash Command Reference (Darwin 9.0): hash

Library: GNU bash Command Reference (Darwin 9.0)

hash

hash: hash [-lr] [-p pathname] [-dt] [name ...]

For each NAME, the full pathname of the command is determined and
remembered.  If the -p option is supplied, PATHNAME is used as the
full pathname of NAME, and no path search is performed.  The -r
option causes the shell to forget all remembered locations.  The -d
option causes the shell to forget the remembered location of each NAME.
If the -t option is supplied the full pathname to which each NAME
corresponds is printed.  If multiple NAME arguments are supplied with
-t, the NAME is printed before the hashed full pathname.  The -l option
causes output to be displayed in a format that may be reused as input.
If no arguments are given, information about remembered commands is displayed.

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