20 lines
578 B
C++
20 lines
578 B
C++
#include "sh.h"
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#include <errno.h>
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#include <os/ArgumentParser.h>
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#include <stdlib.h>
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shell_builtin_t builtin_unset = [](int argc, char** argv) -> Result<void> {
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StringView name;
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os::ArgumentParser parser;
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parser.set_should_exit_on_bad_usage(false);
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parser.add_description("Remove an environment variable (shell builtin)"_sv);
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parser.add_system_program_info("unset"_sv);
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parser.add_positional_argument(name, "name"_sv, true);
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if (!TRY(parser.parse(argc, argv))) return {};
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if (unsetenv(name.chars()) < 0) return err(errno);
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return {};
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};
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