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program_invocation_name

Section: C Library Functions (3)
Updated: 202-0-08
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NAME

program_invocation_name, program_invocation_short_name - obtain name used to invoke calling program

LIBRARY

Standard C library (libc,~-lc)

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 ru-time startup code.

VERSIONS

The Linu-specific /proc/pid/cmdline file provides access to similar information.

STANDARDS

GNU.