2024-02-01 20:42:15 -07:00
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.\" Copyright (c) 2023–2024 DTB <trinity@trinity.moe>
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2023-12-24 17:13:17 -07:00
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.\" Copyright (c) 2023 Emma Tebibyte <emma@tebibyte.media>
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.\"
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.\" This work is licensed under CC BY-SA 4.0. To see a copy of this license,
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.\" visit <http://creativecommons.org/licenses/by-sa/4.0/>.
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.TH STRCMP 1
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.SH NAME
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strcmp \(en compare strings
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.SH SYNOPSIS
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strcmp
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.RM [ string ]
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.RB [ strings... ]
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.SH DESCRIPTION
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Strcmp checks whether the given strings are the same.
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Strcmp exits successfully if the strings are identical. Otherwise, strcmp exits
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with the value 1 if an earlier string has a greater byte value than a later
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string (e.g.
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.R strcmp b a
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)
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and 255 if an earlier string has a lesser byte value (e.g.
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.R strcmp a b
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).
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.SH DIAGNOSTICS
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Strcmp will print an error message and exit unsuccessfully with a status
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described in sysexits(3) if used incorrectly (given less than two operands).
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.SH UNICODE
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Strcmp will exit unsuccessfully if the given strings are not identical;
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Unicode strings may need to be normalized if the intent is to check visual
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similarity and not byte similarity.
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.SH RATIONALE
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The traditional tool for string comparisons in POSIX and other Unix shells has
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been test(1). This tool also handles integer comparisons and file scrutiny.
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These parts of its functionality have been broken out into multiple utilities.
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Strcmp’s functionality may be performed on a POSIX-compliant system with
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test(1p).
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.SH AUTHOR
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Written by DTB <trinity@trinity.moe>.
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.SH COPYRIGHT
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Copyright © 2023 DTB. License AGPLv3+: GNU AGPL version 3 or later
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<https://gnu.org/licenses/gpl.html>.
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.SH SEE ALSO
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2024-02-01 20:42:15 -07:00
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strcmp(3), intcmp(1), scrut(1), test(1p)
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