diff options
| author | peter <peter@FreeBSD.org> | 1998-04-06 16:13:49 +0000 |
|---|---|---|
| committer | peter <peter@FreeBSD.org> | 1998-04-06 16:13:49 +0000 |
| commit | 7c3222498acb0b317b49cca6311ffb697172d7ca (patch) | |
| tree | ad45ab72c9092b4dc1f619c3792adae6338de17b /usr.bin/tail/tail.1 | |
| parent | 6e3ec235ff85715b4f3346989bae94f7e0aaacfe (diff) | |
| download | FreeBSD-src-7c3222498acb0b317b49cca6311ffb697172d7ca.zip FreeBSD-src-7c3222498acb0b317b49cca6311ffb697172d7ca.tar.gz | |
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.
Diffstat (limited to 'usr.bin/tail/tail.1')
| -rw-r--r-- | usr.bin/tail/tail.1 | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/usr.bin/tail/tail.1 b/usr.bin/tail/tail.1 index 8c96737..be5a03f 100644 --- a/usr.bin/tail/tail.1 +++ b/usr.bin/tail/tail.1 @@ -42,7 +42,11 @@ .Nd display the last part of a file .Sh SYNOPSIS .Nm -.Op Fl f Li | Fl r +.Oo +.Fl F | +.Fl f | +.Fl r +.Oc .Oo .Fl b Ar number | .Fl c Ar number | @@ -91,6 +95,20 @@ data to be appended to the input. The .Fl f option is ignored if the standard input is a pipe, but not if it is a FIFO. +.It Fl F +The +.Fl F +option implies the +.Fl f +option, but +.Nm +will also check to see if the file being followed has been renamed or rotated. +The file is closed and reopened when +.Nm +detects that the filename being read from has a new inode number. +The +.Fl F +option is ignored if reading from standard input rather than a file. .It Fl n Ar number The location is .Ar number @@ -136,6 +154,7 @@ utility is expected to be a superset of the .St -p1003.2-92 specification. In particular, the +.Fl F , .Fl b and .Fl r |
