1PROGRAM_INVOCATION_NAME(3) Library Functions Manual PROGRAM_INVOCATION_NAME(3)
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NAME

6       program_invocation_name,  program_invocation_short_name  -  obtain name
7       used to invoke calling program
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SYNOPSIS

10       #define _GNU_SOURCE
11       #include <errno.h>
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13       extern char *program_invocation_name;
14       extern char *program_invocation_short_name;
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DESCRIPTION

17       program_invocation_name contains the name that was used to  invoke  the
18       calling  program.   This is the same as the value of argv[0] in main(),
19       with the  difference  that  the  scope  of  program_invocation_name  is
20       global.
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22       program_invocation_short_name  contains  the basename component of name
23       that was used to invoke the calling program.  That is, it is  the  same
24       value as program_invocation_name, with all text up to and including the
25       final slash (/), if any, removed.
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27       These variables are automatically initialised  by  the  glibc  run-time
28       startup code.
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NOTES

31       The Linux-specific /proc/[number]/cmdline file provides access to simi‐
32       lar information.
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CONFORMING TO

35       These variables are GNU extensions, and should not be used in  programs
36       intended to be portable.
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SEE ALSO

39       proc(5), feature_test_macros(7)
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43GNU                               2006-04-29        PROGRAM_INVOCATION_NAME(3)