dpkg-divert is the utility used to set up and update the list of diversions. It functions in three basic modes -- adding, removing, and listing diversions. The options are --add, --remove, and --list, respectively. Additionally, it can print out the real name for a diverted file. Other options (listed below) may also be specified.
The dpkg-divert command allows you to replace a binary installed upon the system, and have this replacement persist even if you upgrade packages.This is very useful if you want to use an updated version of some application instead of old version existing on your machine.
dpkg-divert Syntax
dpkg-divert [options] [--add] <file>
dpkg-divert [options] --remove <file>
dpkg-divert [options] --list <glob-pattern> dpkg-divert [options] --truename <file>
dpkg-divert Examples
To divert all copies of a /usr/bin/example to /usr/bin/example.foo, i.e. directs all packages providing /usr/bin/example to install it as /usr/bin/example.foo, performing the rename if required
dpkg-divert --divert /usr/bin/example.foo --rename /usr/bin/example
To remove that diversion
dpkg-divert --rename --remove /usr/bin/example
To divert any package trying to install /usr/bin/example to /usr/bin/example.foo, except your own wibble package
dpkg-divert --package wibble --divert /usr/bin/example.foo --rename /usr/bin/example
To remove that diversion
dpkg-divert --package wibble --rename --remove /usr/bin/example
If you want to know more available options for dpkg-divert check man page
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