June 2004
Intermediate to advanced
1056 pages
39h 58m
English
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Name
hash
Synopsis
hash [options] [commands]Search for commands and remember the
directory in which each command resides. Hashing causes the shell to
remember the association between a name and the absolute pathname of
an executable, so that future executions don’t
require a search of PATH. With no arguments or only -l, hash lists
the current hashed commands. The display shows
hits (the number of times the command is called
by the shell) and command (the full
pathname).
Options
- -d
Forget the remembered location of each specified command.
- -l
Display the output in a format that can be reused as input.
- -p
filename Assume
filenameis the full path to the command and don’t do a path search.- -r
Forget the locations of all remembered commands.
- -t
Print the full pathname for each command. With more than one command, print the command before each full path.
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.