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28 Commits

Author SHA1 Message Date
Jaakko Heinonen
849d265d53 Print file names without stdio buffering to avoid mixing buffered and 
unbuffered ouput.

PR:		bin/176886
Reviewed by:	mjg
 2013-06-09 08:06:26 +00:00
Ed Schouten
c7c497f1c5 Add missing static keywords to tail(1) 2011-11-06 08:17:17 +00:00
Joel Dahl
da52b4caaf Remove the advertising clause from UCB copyrighted files in usr.bin. This 
is in accordance with the information provided at
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

Also add $FreeBSD$ to a few files to keep svn happy.

Discussed with:	imp, rwatson
 2010-12-11 08:32:16 +00:00
Brian Somers
22da50cfc8 Change the behaviour of -F slightly; it now persists (forever) in 
trying to open files rather than giving up when it encounters an
error.  ENOENT errors are not reported.

As a result, files that are moved away then recreated are not at
risk of being 'lost' to tail.  Files that are recreated and
temporarily have unreadable permissions will be shown when they
are fixed.

This behaviour is consistent with the GNU version of tail but
without the verbiage that goes with the GNU version.

This change also fixes error messages accompanying -f and -F.
They no longer report problems with (null)!

MFC after:	3 weeks
 2009-06-05 09:08:53 +00:00
Philippe Charnier
f8c2d2bde1 initialize variables, WARNS=6 compliant 2007-11-02 18:06:51 +00:00
Ruslan Ermilov
2982527d8b - Simplify the formatting in the SYNOPSIS. 
- Add the forgotten new option in usage().
 2006-06-30 08:19:26 +00:00
Florent Thoumie
aa1d7ce72f Add a -q option to suppress header lines when multiple files are specified. 
Approved by:	cperciva (mentor)
MFC after:	1 week
 2006-06-29 22:07:49 +00:00
Eivind Eklund
e1d27f08f1 Back out revision 1.19 and 1.20 until I find mental clarity to deal with 
issues bde pointed out.
 2005-06-01 20:34:06 +00:00
Eivind Eklund
ffef99c316 Remove an errno reset that became unnecessary. 
Noticed by: juli
 2005-05-26 22:49:08 +00:00
Eivind Eklund
d21ccc03c0 We are past 4.4BSD - use our new-found stat flags for pipes and fifos. 2005-05-26 22:14:37 +00:00
Paul Richards
15a55f7926 Add support for following more than one file i.e. 
tail -f file1 file2
 2004-11-04 19:18:19 +00:00
Paul Richards
f45a52b3c3 Revert a WIP change that shouldn't have been in last commit. 2004-11-03 17:52:29 +00:00
Paul Richards
4bba8e595e Convert to ANSI style function definitions. 2004-11-03 15:23:11 +00:00
Alfred Perlstein
d183dcb670 WARNS=4, add 2002-07-14 18:21:07 +00:00
Warner Losh
3f330d7d1a remove __P 2002-03-22 01:42:45 +00:00
Mark Murray
814e3a92a9 WARNS=2 fixes, use __FBSDID(). 2001-12-12 00:01:16 +00:00
Bill Fenner
8cd6778484 Allow "obsolete" (but commonly-used) command line style to be used 
with -F, e.g. tail -1 -F /var/log/messages.

Submitted by:	Maxim Konovalov <maxim@macomnet.ru>
 2001-10-02 06:22:01 +00:00
Andrey A. Chernov
bd9dc97512 File positions are off_t nowdays, not long, so: 
long -> off_t
strtol -> strtoll
fseek -> fseeko

NOTE: that fseek not works for >long offsets files per POSIX:

[EOVERFLOW] For fseek( ), the resulting file offset would be a value which
cannot be represented correctly in an object of type long.
 2001-09-01 22:22:45 +00:00
Ruslan Ermilov
1715c485d4 Mention the -F in the usage(). 
PR:		24586
Submitted by:	Cyrille Lefevre <clefevre@citeweb.net>
 2001-01-24 08:27:59 +00:00
Jeroen Ruigrok van der Werven
48a1ef2284 Remove register keyword usage with prejudice. 
Modern compilers are smarter when it comes to allocating register
usage.
 2000-12-03 17:05:45 +00:00
Jeroen Ruigrok van der Werven
beed3992fc Use a size_t instead of an int. 2000-12-02 20:21:13 +00:00
Jeroen Ruigrok van der Werven
247e7cb1d3 Properly constify some static arrays. 
Also #if out some sccsid's and add rcsid's.
 2000-12-02 19:10:12 +00:00
Bill Fumerola
9ef5c48bef Clean up some ambiguous nested if/elses. 1999-07-04 17:26:16 +00:00
Peter Wemm
eb1c943900 Add a new -F flag which is a superset of -f. It will cause tail to 
stat() the file being followed and do a close/reopen if the file has been
renamed and/or rotated.  This is damn useful for leaving running on files
in /var/log when newsyslog(8) rotates them.
 1998-04-06 16:13:49 +00:00
Warner Losh
1c8af87873 compare return value from getopt against -1 rather than EOF, per the final 
posix standard on the topic.
 1997-03-29 04:34:07 +00:00
Peter Wemm
c3fd5728c2 Dont forget to #include <err.h> 1996-08-25 21:14:19 +00:00
Peter Wemm
ac5512704d Argh! caught! *blush*.. This program was supplying it's own 'err' routine 
which was slightly different to the libc one.  To save any more cunfusion,
use the libc one.
 1996-08-25 21:12:01 +00:00
Rodney W. Grimes
9b50d90275 BSD 4.4 Lite Usr.bin Sources 1994-05-27 12:33:43 +00:00