rpmprune - Remove unneeded files from a list of RPM pack
age files
SYNOPSIS
rpmprune [ --newer ] [ --older ] [ --equal ] [ --uninst ]
[ --invert ] filelist ...
DESCRIPTION
The rpmprune tool is a simple example of using some of the
RPM Perl bindings.
With rpm version 3 and newer, multiple files given on the
command-line for an install, uninstall or update command
are treated as a single transaction. If any of the files
in the set cannot be acted upon, the whole transaction
must be rejected. This is inconvenient for casual package
upgrades where a directory may have many rpm files, some
of which are already installed. A command of:
rpm -Uhv *.rpm
would fail, as one (or more) files in the set is already
installed. This can lead to careless use of options such
as `--force'.
In the simplest usage, this tool eases that situation by
allowing:
rpm -Uhv `rpmprune *.rpm`
When the back-ticks are evaluated, rpmprune has only
echoed the names of those files that are either newer than
their installed counterparts, or are not installed at all.
OPTIONS
For maximum flexibility, rpmprune supports more options
than anyone will realistically put to use:
--help
Print a summary of the options and general usage.
--newer (--nonewer)
If selected, all files that are newer than their
installed counterparts will be echoed. Prefix with
"no" to suppress the printing of these.
--older (--noolder)
If selected, all files that are older than their
installed counterparts will be echoed. Prefix with
"no" to suppress them, instead.
--equal (--noequal)
If selected, all files that are the same version as
with "no" to suppress them, instead.
--uninst (--nouninst)
If selected, all files that are for packages not cur
rently installed on the system will be echoed. Prefix
with "no" to suppress them, instead.
--invert
Invert the logic of all four of the previous selec
tors.
Without any arguments, rpmprune acts as if the following
were the command line:
rpmprune --newer --noolder --noequal --uninst ...
The `--invert' option is applied last, after all others
have been processed.
AUTHOR
Randy J. Ray <rjray@blackperl.com>
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