SAVELOG(G)                                             SAVELOG(G)



NAME
       savelog - save a log file

SYNOPSIS
       savelog  [-m  mode]  [-u  user]  [-g  group] [-t] [-p] [-c
       cycle] [-l] file ...

DESCRIPTION
       The savelog command saves and  optionally  compresses  old
       copies of files.  Older versions of file are named:

              file.<number><compress_suffix>

       where  <number> is the version number, 0 being the newest.
       Version numbers > 0 are compressed unless -l prevents  it.
       Version  number 0 is not compressed becase a process might
       still have file opened for I/O.  Only  cycle  versions  of
       the file are kept.

       If  the  file  does not exist and -t was given, it will be
       created.

       For files that do exist  and  have  lengths  greater  than
       zero, the following actions are performed:


       1)     Version numbered files are cycled.  Version cycle-2
              is moved to version  cycle-1,  version  cycle-3  is
              moved to version cycle-2 , and so on.  Finally ver-
              sion 0 is moved to version 1, and version cycle  is
              deleted.   Both  compressed  names and uncompressed
              names are cycled, regardless of -l.   Missing  ver-
              sion files are ignored.


       2)     The new file.1 is compressed unless the -l flag was
              given.  It is changed subject to the -m, -u, and -g
              flags.


       3)     The main file is moved to file.0.


       4)     If the -m, -u, -g,  -t, or -p flags are given, then
              an empty file  is  created  subject  to  the  given
              flags.   With the -p flag, the file is created with
              the same owner, group, and permissions as before.


       5)     The new file.0 is changed subject to  the  -m,  -u,
              and -g flags.

              Since  the  version  numbers  start with 0, version
              number cycle is never formed.  The cycle count must
              be at least 2.


OPTIONS
       -m mode
              chmod the log files to mode

       -u user
              chown log files to user

       -g group
              chgrp log files to group

       -c cycle
              Save cycle versions of the logfile (default: 7)

       -t     touch new logfile into existence

       -l     don't compress any log files (default: do compress)

       -p     preserve owner, group, and permissions of logfile

BUGS
       If a process is still writing to file.0, and savelog moves
       it to file.1 and compresses it, data could be lost.







Debian GNU/Linux          24 August 1997               SAVELOG(G)