INVOCATION_NAME(3)                                  Linux Programmer's Manual                                 INVOCATION_NAME(3)



NAME
       program_invocation_name, program_invocation_short_name - obtain name used to invoke calling program

SYNOPSIS
       #define _GNU_SOURCE
       #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), feature_test_macros(7)

COLOPHON
       This page is part of release 3.25 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/.



GNU                                                        2006-04-29                                         INVOCATION_NAME(3)