INSTALLLOG(4-SVR4)  RISC/os Reference Manual   INSTALLLOG(4-SVR4)



NAME
     installlog - information about installed software packages

SYNOPSIS
     /etc/installlog

DESCRIPTION
     This file maintains information about the software packages
     and subpackages installed on the system. It is used during
     update installations of packages with the findmods option,
     to automatically detect locally modified files which are
     also present in the new release. The main purpose of the
     file is to associate a set of release timestamps with the
     packages that have been installed on a system over time.

     installlog entries are created automatically as software
     packages and updates are installed on a system.

     Each entry has the following general format:

       package[.subpackage] version timestamp  (date) at date

     package is the package name that the log entry applies to,
     such as ``umips''; .subpackage, when present, identifies a
     particular subpackage.

     version is the version which was installed.

     timestamp is the release timestamp for the package. All
     files shipped with this version of this package or subpack-
     age package bear this timestamp as the file modification
     time; subsequent installations use this information to
     determine whether an extant file on the system is an unmodi-
     fied version of the file installed from a previous release,
     or a locally modified version of the file. The timestamp is
     the integer number of seconds since the epoch, midnight
     December 31, 1969 GMT.

     The (date) field is a representation of the timestamp time
     in a format more suitable for human consumption.

     The at date field gives the time and date that the associ-
     ated package (or subpackage) was installed; this is provided
     for record keeping convenience only.

     The style of installlog entries has changed a little over
     time. Older entries do not include the .subpackage part of
     the package name, nor the ``at date'' information. Also the
     format of the human-consumption date is slightly more ver-
     bose in older entries.





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INSTALLLOG(4-SVR4)  RISC/os Reference Manual   INSTALLLOG(4-SVR4)



     findmods, which is currently the only program that reads
     installlog files, will recognize and properly interpret
     either format.

EXAMPLES
     The following entries give examples of both the older and
     newer installlog entry formats:

     old-style:
          f77 2.0 558806400 (Wed Sep 16 16:00:00 1987 GMT)

     new-style:
          umips.root 3.0 574851600 (3-20-88 09:00:00 GMT) at
          3-30-88 14:52 PST

SEE ALSO
     preserve(1M), pkginst(1M) in the System Administrator's
     Reference Manual.





































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