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.
This page is part of release 2.79 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/.
Copyright (C) 2006 Michael Kerrisk <mtk.manpages@gmail.com>
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