From 92f367e5f2b51bd88cab5ad9e21237ed29e1b824 Mon Sep 17 00:00:00 2001 From: Ceri Davies Date: Sun, 1 Feb 2004 13:52:19 +0000 Subject: [PATCH] Add a section documenting the return values from diff. PR: docs/59991 Submitted by: keramida,Erik Greenwald MFC After: 1 week --- gnu/usr.bin/diff/diff.1 | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/gnu/usr.bin/diff/diff.1 b/gnu/usr.bin/diff/diff.1 index 0164f232d25f..f04d90f93498 100644 --- a/gnu/usr.bin/diff/diff.1 +++ b/gnu/usr.bin/diff/diff.1 @@ -474,6 +474,11 @@ match any pattern contained in .TP .B \-y Use the side by side output format. +.SH RETURN VALUE +.I diff +returns 0 if the files are identical or 1 if the files differ. +If one or both of the files cannot be opened, +then the return value is set to 2. .SH ENVIRONMENT The environment variable .B DIFF_OPTIONS