SIMPLE SOLUTIONS

PROGRAM_INVOCATION_NAME(3) - man page online | library functions

Obtain name used to invoke calling program.

Chapter
2006-04-29
INVOCATION_NAME(3)                  Linux Programmer's Manual                  INVOCATION_NAME(3)

NAME

program_invocation_name, program_invocation_short_name - obtain name used to invoke call‐ ing program

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 run-time startup code.

CONFORMING TO

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

NOTES

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

SEE ALSO

proc(5)

COLOPHON

This page is part of release 4.04 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at http://www.kernel.org/doc/man-pages/.
GNU 2006-04-29 INVOCATION_NAME(3)
This manual Reference Other manuals
program_invocation_name(3) referred by error(3) | systemd.journal-fields(7)
refer to feature_test_macros(7) | proc(5)