WHICH(1) User Commands WHICH(1)


NAME


which - locate a command and display its pathname or alias

SYNOPSIS


which [name]...


DESCRIPTION


which takes a list of names and determines which alias or utility would
be executed had these names been given as commands.


For each name operand, if it names an alias the alias is expanded.
Otherwise the user's path is searched for a utility name matching name.
Aliases are taken from the user's .cshrc file. path is taken from the
current shell execution environment.

OPERANDS


The following operand is supported:

name
The name of a command to be located.


EXIT STATUS


The following exit values are returned:

0
Successful completion.


>0
One or more name operands were not located or an error occurred.


FILES


~/.cshrc
source of aliases and path values


SEE ALSO


csh(1), attributes(5)

DIAGNOSTICS


A diagnostic is given for names which are aliased to more than a single
word, or if an executable file with the argument name was not found in
the path.

NOTES


The which utility is not a shell built-in command.

BUGS


To compensate for ~/.cshrc files in which aliases depend upon the prompt
variable being set, which sets this variable to NULL. If the ~/.cshrc
produces output or prompts for input when prompt is set, which can
produce some strange results.


March 30, 2005 WHICH(1)