NAME

       program_invocation_name, program_invocation_short_name - obtain name used to invoke calling program

SYNOPSIS

       #define _GNU_SOURCE         /* See feature_test_macros(7) */
       #include <errno.h>

       extern char *program_invocation_name;
       extern char *program_invocation_short_name;

DESCRIPTION

       program_invocation_name  contains the name that was used to invoke the calling program.  This is the same
       as the value of argv[0] in main(), with the difference  that  the  scope  of  program_invocation_name  is
       global.

       program_invocation_short_name contains the basename component of name that was used to invoke the calling
       program.  That is, it is the same value as program_invocation_name, with all text up to and including the
       final slash (/), if any, removed.

       These variables are automatically initialized by the glibc run-time startup code.

CONFORMING TO

       These variables are GNU extensions, and should not be used in programs intended to be portable.

NOTES

       The Linux-specific /proc/[number]/cmdline file provides access to similar information.

SEE ALSO

       proc(5)

COLOPHON

       This  page  is  part  of  release 3.54 of the Linux man-pages project.  A description of the project, and
       information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.