which (1)
NAME
which - locate a command
SYNOPSIS
which [-a] filename ...
DESCRIPTION
which
returns the pathnames of the files (or links) which would be executed
in the current environment, had its arguments been given as commands
in a strictly POSIX-conformant shell. It does this by searching the
PATH for executable files matching the names of the arguments. It does
not follow symbolic links.
OPTIONS
- -a
-
print all matching pathnames of each argument
EXIT STATUS
- 0
-
if all specified commands are found and executable
- 1
-
if one or more specified commands is nonexistent or not executable
- 2
-
if an invalid option is specified