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INVOCATION_NAME(3) Linux Programmer's Manual INVOCATION_NAME(3)

NAME

     program_invocation_name,  program_invocation_short_name  -  obtain name
     used to invoke calling 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 portable.

NOTES

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

SEE ALSO

     proc(5)

COLOPHON

     This  page  is  part of release 4.16 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/.

GNU 2017-09-15 INVOCATION_NAME(3)