PROGRAM_INVOCATION_NAME

Section: C Library Functions (3)
Updated: 2006-04-29
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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 initialised by the glibc run-time startup code.  

NOTES

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

CONFORMING TO

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

SEE ALSO

proc(5)


 

Index

NAME
SYNOPSIS
DESCRIPTION
NOTES
CONFORMING TO
SEE ALSO

linux.jgfs.net manual pages