command(1) command(1)
NAME [Toc] [Back]
command - execute a simple command
SYNOPSIS [Toc] [Back]
command command_name [argument ...]
DESCRIPTION [Toc] [Back]
command enables the shell to treat the arguments as a simple command,
suppressing the shell function lookup.
If command_name is not the name of the function, the effect of command
is the same as omitting command.
OPERANDS [Toc] [Back]
command recognizes the following operands:
command_name The name of a HP-UX command or a shell
built-in command.
argument One or more strings to be interpreted as
arguments to command_name.
The command command is necessary to allow functions that have the same
name as a command to call the command (instead of a recursive call to
the function).
Nothing in the description of command is intended to imply that the
command line is parsed any differently than any other simple command.
For example,
command a | b ; c
is not parsed in any special way that causes | or ; to be treated
other than a pipe operator or semicolon or that prevents function
lookup on b or c.
EXTERNAL INFLUENCE [Toc] [Back]
Environment Variables
PATH determines the search path used during the command search.
RETURN VALUE [Toc] [Back]
command exits with one of the following values:
+ If command fails:
126 The utility specified by the command_name is
found but not executable.
127 An error occurred in the command utility or the
utility specified by command_name is not found.
Hewlett-Packard Company - 1 - HP-UX 11i Version 2: August 2003
command(1) command(1)
+ If command does not fail:
The exit status of command is the same as that of the
simple command specified by the arguments:
command_name[argument ...]
EXAMPLES [Toc] [Back]
Create a version of the cd command that always prints the name of the
new working directory whenever it is used:
cd() {
command "$@" >/dev/null
pwd
}
Circumvent the redefined cd command above, and change directories
without printing the name of the new working directory:
command cd
SEE ALSO [Toc] [Back]
getconf(1), sh-posix(1), confstr(3C).
STANDARDS CONFORMANCE [Toc] [Back]
command: XPG4, POSIX.2
Hewlett-Packard Company - 2 - HP-UX 11i Version 2: August 2003 [ Back ] |