Le 11/18/24 à 11:50, to...@tuxteam.de a écrit :
Help yourseof :) https://sources.debian.org/src/coreutils/ (Of course, apt-get source coreutils would do the same). Cheers
Thank you tomas, After a second reading of https://sources.debian.org/src/coreutils/9.5-1/src/test.c/, it seems that the [ binary, the [ shell builtin and the test command all share the same C source code (test.c) which has different #ifdef branches to handle all three outputs. #define TEST_STANDALONE 1 this ensures that code for the test binary is executed, otherwise it produces the test shell builtin (somehow?) #ifndef LBRACKET # define LBRACKET 0 #endif /* The official name of this program (e.g., no 'g' prefix). */ #if LBRACKET # define PROGRAM_NAME "[" #else # define PROGRAM_NAME "test" #endif That creates the appropriate program name, depending on wether we want [ or not. if (LBRACKET) { /* Recognize --help or --version, but only when invoked in the "[" form, when the last argument is not "]". Use direct parsing, rather than parse_long_options, to avoid accepting abbreviations. POSIX allows "[ --help" and "[ --version" to have the usual GNU behavior, but it requires "test --help" and "test --version" to exit silently with status 0. */ if (margc == 2) { if (STREQ (margv[1], "--help")) usage (EXIT_SUCCESS); if (STREQ (margv[1], "--version")) { version_etc (stdout, PROGRAM_NAME, PACKAGE_NAME, Version, AUTHORS, (char *) nullptr); test_main_return (EXIT_SUCCESS); } } if (margc < 2 || !STREQ (margv[margc - 1], "]")) test_syntax_error (_("missing %s"), quote ("]")); --margc; } That seems to be the code that looks for the closing bracket, if test is invoked as [ So it seems [ is created with a -DLBRACKET option. Best, -- yassine -- sysadm http://about.me/ychaouche
