1program_invocation_name(3) Library Functions Manual program_invocation_name(3)
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6 program_invocation_name, program_invocation_short_name - obtain name
7 used to invoke calling program
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10 Standard C library (libc, -lc)
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13 #define _GNU_SOURCE /* See feature_test_macros(7) */
14 #include <errno.h>
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16 extern char *program_invocation_name;
17 extern char *program_invocation_short_name;
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20 program_invocation_name contains the name that was used to invoke the
21 calling program. This is the same as the value of argv[0] in main(),
22 with the difference that the scope of program_invocation_name is
23 global.
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25 program_invocation_short_name contains the basename component of name
26 that was used to invoke the calling program. That is, it is the same
27 value as program_invocation_name, with all text up to and including the
28 final slash (/), if any, removed.
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30 These variables are automatically initialized by the glibc run-time
31 startup code.
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34 The Linux-specific /proc/pid/cmdline file provides access to similar
35 information.
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38 GNU.
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41 proc(5)
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45Linux man-pages 6.05 2023-03-30 program_invocation_name(3)