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README.md

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+# pkgsync
+
+pkgsync synchronizes packages between two servers.
+
+
+### Usage
+
+On the reference server:
+```shell
+pkgsync export packages.json
+```
+
+On the outdated server:
+```shell
+# yum
+pkgsync import packages.json | xargs yum --assumeyes install
+
+# apt
+pkgsync import packages.json | xargs apt -y install
+```
+
+
+### Caveats
+
+ - Servers must be the same Linux distribution
+ - Servers must be the same major release
+ - Repositories must be the same between servers
+