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ROTATELOGS(8)                                    rotatelogs                                    ROTATELOGS(8)



NAME
       rotatelogs - Piped logging program to rotate Apache logs


SYNOPSIS
       rotatelogs [ -l ] logfile [ rotationtime [ offset ]] | [ filesizeM ]



SUMMARY
       rotatelogs  is a simple program for use in conjunction with Apache's piped logfile feature. For exam-ple: example:
       ple:


            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  nomi-nally nominally
       nally  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.


            CustomLog "|bin/rotatelogs /var/logs/logfile 5M" common



       This configuration will rotate the logfile whenever it reaches a size of 5 megabytes.


            ErrorLog "|bin/rotatelogs /var/logs/errorlog.%Y-%m-%d-%H_%M_%S 5M"



       This configuration will rotate the error logfile whenever it reaches a size of 5 megabytes,  and  the
       suffix to the logfile name will be created of the form errorlog.YYYY-mm-dd-HH_MM_SS.



OPTIONS
       -l     Causes  the use of local time rather than GMT as the base for the interval. Note that using -l
              in an environment which changes the GMT offset (such as for BST or DST)  can  lead  to  unpre-dictable unpredictable
              dictable results!

       logfile
              The  path  plus basename of the logfile. If logfile includes any '%' characters, it is treated
              as a format string for strftime(3). Otherwise, the suffix .nnnnnnnnnn is  automatically  added
              and is the time in seconds. Both formats compute the start time from the beginning of the cur-rent current
              rent period.

       rotationtime
              The time between log file rotations in seconds.

       offset The number of minutes offset from UTC. If omitted, zero is assumed and UTC is used. For  exam-ple, example,
              ple, to use local time in the zone UTC -5 hours, specify a value of -300 for this argument.

       filesizeM
              The  maximum file size in megabytes followed by the letter M to specify size rather than time.
              Use this parameter in place of both rotationtime and offset.


PORTABILITY
       The following logfile format string substitutions should be supported by all strftime(3)  implementa-tions, implementations,
       tions, 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 `%'




Apache HTTP Server                               2004-06-20                                    ROTATELOGS(8)