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cronolog features
cronolog is a simple filter program that reads log file
entries from standard input and writes each entry to the output file
specified by a filename template and the current date and time.
When the expanded filename changes, the current file is closed and a
new one opened.
cronolog is intended to be used in conjunction with a Web
server, such as Apache,
to split the access log into daily or monthly logs. For example the
Apache configuration directives:
TransferLog "|/usr/sbin/cronolog /web/logs/%Y/%m/%d/access.log"
ErrorLog "|/usr/sbin/cronolog /web/logs/%Y/%m/%d/errors.log"
would instruct Apache to pipe its access and error log messages
into separate copies of cronolog, which would create new log
files each day in a directory hierarchy structured by date,
i.e. on 31 December 2002 messages would be written to
/web/logs/2002/12/31/access.log
/web/logs/2002/12/31/errors.log
after midnight the files
/web/logs/2003/01/01/access.log
/web/logs/2003/01/01/errors.log
would be used, with the directories 2003, 2003/01 and 2003/01/01
being created if they did not already exist.
More detail to come...
Andrew Ford
2002-01-20
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