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

NAME         top

       program_invocation_name,  program_invocation_short_name - obtain name
       used to invoke calling program

SYNOPSIS         top

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

       extern char *program_invocation_name;
       extern char *program_invocation_short_name;

DESCRIPTION         top

       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

       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         top

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

NOTES         top

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

SEE ALSO         top


COLOPHON         top

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       latest version of this page, can be found at

GNU                              2006-04-29               INVOCATION_NAME(3)

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