program_invocation_name - Online Linux Manual Page

Section : 3
Updated : 2022-10-30
Source : Linux man-pages 6.03
NAMEprogram_invocation_name, program_invocation_short_name − obtain name used to invoke calling program
LIBRARYStandard 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;
DESCRIPTIONprogram_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.
STANDARDSThese variables are GNU extensions, and should not be used in programs intended to be portable.
NOTESThe Linux-specific /proc/[number]/cmdline file provides access to similar information.
SEE ALSOproc(5) 0
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