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authorCeri Davies <ceri@FreeBSD.org>2004-02-01 13:52:19 +0000
committerCeri Davies <ceri@FreeBSD.org>2004-02-01 13:52:19 +0000
commit92f367e5f2b51bd88cab5ad9e21237ed29e1b824 (patch)
tree16fa3330a8146b9f02c7111e3b1466247518802a /gnu
parentcf3b2baf6d1c7dc10b3d07e53346451bd32ae1d1 (diff)
Notes
Diffstat (limited to 'gnu')
-rw-r--r--gnu/usr.bin/diff/diff.15
1 files changed, 5 insertions, 0 deletions
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