docs/62909: missing information in tail and head manpages

[Marc Silver]

>Number:         62909
>Category:       docs
>Synopsis:       missing information in tail and head manpages
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-doc
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          doc-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Feb 16 04:40:15 PST 2004
>Closed-Date:
>Last-Modified:
>Originator:     Marc Silver
>Release:        FreeBSD 4.9-STABLE i386
>Organization:
>Environment:
System: FreeBSD riffraff.plig.net 4.9-STABLE FreeBSD 4.9-STABLE #4: Mon Jan 5 11:52:58 GMT 2004 keet at riffraff.plig.net:/usr/src/sys/compile/RIFFRAFF i386


>Description:
	
	As described by Herculano de Lima Einloft Neto <hlen at ig.com.br>,
	there exists an error in the head and tail manpages whereby the
	-n <number> options can be specified as just -number, thereby
	omitting the -n flag.

	This isn't documented in the man pages, and though it may not be
	the 'correct' way, it is a valid option.

>How-To-Repeat:
	man tail
	man head
>Fix:

	Apply the following patches:

--- head.1-orig	Mon Feb 16 11:19:33 2004
+++ head.1	Mon Feb 16 14:14:42 2004
@@ -40,7 +40,7 @@
 .Nd display first lines of a file
 .Sh SYNOPSIS
 .Nm
-.Op Fl n Ar count | Fl c Ar bytes
+.Op Fl n Ar count | Fl c Ar bytes | Fl number
 .Op Ar
 .Sh DESCRIPTION
 This filter displays the first
@@ -52,6 +52,11 @@
 If
 .Ar count
 is omitted it defaults to 10.
+Optionally, the
+.Fl n
+flag may be omitted in favour of the
+.Ar count
+itself.
 .Pp
 If more than a single file is specified, each file is preceded by a
 header consisting of the string



--- tail.1-orig	Mon Feb 16 11:19:24 2004
+++ tail.1	Mon Feb 16 14:12:53 2004
@@ -51,7 +51,8 @@
 .Oo
 .Fl b Ar number |
 .Fl c Ar number |
-.Fl n Ar number
+.Fl n Ar number |
+.Fl number
 .Oc
 .Op Ar
 .Sh DESCRIPTION
@@ -114,6 +115,11 @@
 The location is
 .Ar number
 lines.
+.It Fl number
+This option works in the same way as the
+.Fl n
+flag, but it allows the silent dropping of the flag itself, and expects
+the location itself to be given.
 .It Fl r
 The
 .Fl r
>Release-Note:
>Audit-Trail:
>Unformatted: