add zypper_autoremove.bash

zypper_autoremove.bash

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+# Script that imitates `apt autoremove` for zypper as there is no native solution.
+
+package_list=$(sudo zypper packages --unneeded)
+table_start=$(echo "$package_list" | grep -n "S | Repository | Name"| gawk '{print $1}' FS=":")
+
+unneeded_packages=()
+while IFS= read -r package; do
+    package="$(echo "$package"| awk -F '|' '{ print $3 }' | xargs)"
+    unneeded_packages+=("$package")
+done < <(echo "$package_list" | tail -n+$((table_start+2)))
+
+unneeded_package_list=$(printf '%s ' "${unneeded_packages[@]}")
+
+if [ "$unneeded_package_list" = " " ]; then
+    sudo zypper rm -u $unneeded_package_list
+else
+    echo "No unneeded packages."
+fi
+