logtail2(8) [debian man page]
LOGTAIL(8) logtail2 manual LOGTAIL(8) NAME
logtail2 - print log file lines that have not been read SYNOPSIS
logtail2 [-t] -flogfile [-ooffsetfile] DESCRIPTION
logtail2 reads a specified file (usually a log file) and writes to the standard output that part of it which has not been read by previous runs of logtail2. It prints the appropriate number of bytes from the end of logfile, assuming that all changes that are made to it are to add new characters to it. logfile must be a plain file. A symlink is not allowed. logtail2 stores the information about how much of it has already been read in a separate file called offsetfile. offsetfile can be omit- ted. If omitted, the file named logfile.offset in the same directory which contains logfile is used by default. If offsetfile is not empty, the inode of logfile is checked. If the inode is changed, logtail2 uses the heuristics stored in /usr/share/logtail/detectrotate/ to find a file that might be the rotated logfile and prints it starting with the stored offset. It then proceeds to simply print the entire new file and generates a new offsetfile. If the inode is not changed but logfile is shorter than it was at the last run of logtail2, it writes a warning message to the standard output. OPTIONS
-f logfile to be read after offset -o offsetfile stores offset of previous run -t test mode - do not change offset in offsetfile RETURN VALUES
0 successful 65 cannot get the size of logfile 66 general file or directory access issue 73 cannot write offsetfile AUTHOR
The original logtail was written in C by Craig H. Rowland <crowland@psionic.com>. This version of logtail is a modification of Paul Sloot- man's re-implementation in perl. enhanced by the Debian Logcheck Team <logcheck-devel@lists.alioth.debian.org>. This manual was written by Oohara Yuuma <oohara@libra.interq.or.jp> and enhanced by the Debian Logcheck Team <logcheck-devel@lists.alioth.debian.org>.. SEE ALSO
logcheck(8) Debian 28 Jul 2007 LOGTAIL(8)
Check Out this Related Man Page
rotatelogs(8) System Manager's Manual rotatelogs(8) NAME
rotatelogs - rotate Apache logs without having to kill the server SYNOPSIS
rotatelogs logfile rotationtime [offset] DESCRIPTION
rotatelogs is a simple program for use in conjunction with Apache's piped logfile feature, which can be used like this: CustomLog "|bin/rotatelogs /var/logs/logfile 86400" common This creates the files /var/logs/logfile.nnnn where nnnn is the system time at which the log nominally starts (this time will always be a multiple of the rotation time, so you can synchronize cron scripts with it). At the end of each rotation time (here after 24 hours) a new log is started. OPTIONS
logfile The path plus basename of the logfile. If logfile includes any Otherwise, the suffix .nnnnnnnnnn is automatically added and is the time in seconds. Both formats compute the start time from the beginning of the current period. rotationtime The rotation time in seconds. offset The number of minutes offset from UTC. If omitted, zero is assumed and UTC is used. For example, to use local time in the zone UTC -5 hours, specify a value of -300 for this argument. PORTABILITY
The following logfile format string substitutions should be supported by all strftime(3) implementations, see the strftime(3) man page for library-specific extensions. %A full weekday name (localized) %a 3-character weekday name (localized) %B full month name (localized) %b 3-character month name (localized) %c date and time (localized) %d 2-digit day of month %H 2-digit hour (24 hour clock) %I 2-digit hour (12 hour clock) %j 3-digit day of year %M 2-digit minute %m 2-digit month %p am/pm of 12 hour clock (localized) %S 2-digit second %U 2-digit week of year (Sunday first day of week) %W 2-digit week of year (Monday first day of week) %w 1-digit weekday (Sunday first day of week) %X time (localized) %x date (localized) %Y 4-digit year %y 2-digit year %Z time zone name %% literal `%' SEE ALSO
httpd(8) March 2001 rotatelogs(8)