I like to keep an archive of my code on a monthly basis. I wrote a small bash script to create zip out of my multi module Java projects. It gets the job done and can be improved to include resources and test folders as well. As of now I am only interested in the Java code zip backup.

!/bin/bash
 if [ -d "combined" ]; then
     echo "Removing existing zip files in combined .."
     rm combined/*.zip
 else
     echo "Creating combined folder.."
     mkdir combined
 fi
 for d in */ ; do
     if [ -d "$d/src/main/java" ]; then
         var="$(echo $d | sed 's/.$//')"
         echo "Processing $var .."
         cd $d/src/main/java
         zip -r ../../../../combined/$var.zip com
         cd ../../../..
     else
         echo "Ignoring .. $d"
     fi
 done