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-rw-r--r--misc-utils/cal.18
1 files changed, 7 insertions, 1 deletions
diff --git a/misc-utils/cal.1 b/misc-utils/cal.1
index 6a5ec5ae5..9bade9d0b 100644
--- a/misc-utils/cal.1
+++ b/misc-utils/cal.1
@@ -42,7 +42,7 @@
.Nd displays a calendar
.Sh SYNOPSIS
.Nm cal
-.Op Fl mjy
+.Op Fl mjy13
.Op Ar month Op Ar year
.Sh DESCRIPTION
.Nm Cal
@@ -51,6 +51,12 @@ If arguments are not specified,
the current month is displayed.
The options are as follows:
.Bl -tag -width Ds
+.It Fl 1
+Display single month output (use if cal was built with -3 as default to get
+older traditional output)
+.It Fl 3
+Display prev/current/next month output (use if cal was built with traditional
+-1 as default to get newer improved output)
.It Fl m
Display Monday as the first day of the week.
(The default is Sunday.)