program_invocation_name, program_invocation_short_name - obtain name used to invoke calling program
#define _GNU_SOURCE /* See feature_test_macros(7) */ #include <errno.h> extern char * program_invocation_name; extern char * program_invocation_short_name;
program_invocation_name contains the name that was used to invoke the calling program. This is the same as the value of
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.
These variables are GNU extensions, and should not be used in programs intended to be portable.
/proc/[number]/cmdline file provides access to similar information.
This page is part of release 4.15 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 https://www.kernel.org/doc/man-pages/.