getconf(1) - NetBSD Manual Pages

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GETCONF(1)              NetBSD General Commands Manual              GETCONF(1)


NAME

     getconf -- get configuration values


SYNOPSIS

     getconf system_var
     getconf path_var pathname
     getconf -a [pathname]


DESCRIPTION

     The getconf utility writes the current value of a configurable system
     limit or option variable to the standard output.

     The system_var argument specifies the system variable to be queried.  The
     names of the system variables are from sysconf(3) with the leading
     ``_SC_'' removed.

     The path_var argument specifies the pathname variable to be queried for
     the specified pathname argument.  The names of the pathname variables are
     from pathconf(2) with the leading ``_PC_'' removed.

     When invoked with the option -a, getconf writes a list of all applicable
     variables and their values to the standard output, in the format ``name =
     value''.

     For compatibility with other operating systems, getconf will ignore lead-
     ing underscores in the names specified in the system_var and path_var
     arguments.


EXIT STATUS

     The getconf utility exits 0 on success, and >0 if an error occurs.


EXAMPLES

     To retrieve the number of configured processors, use:

           $ getconf NPROCESSORS_CONF

     To retrieve the maximum number of bytes (excluding the trailing NUL) for
     a filename in the current directory, use:

           $ getconf NAME_MAX .


SEE ALSO

     pathconf(2), confstr(3), limits(3), sysconf(3)


STANDARDS

     The getconf utility conforms to IEEE Std 1003.2-1992 (``POSIX.2'').

NetBSD 10.1                    February 18, 2024                   NetBSD 10.1