add etc/install

Closes #74

etc/install

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+# FOR MY PERSONAL USE ONLY!
+
+mkdir -p /etc/
+cat oidentd.conf > /etc/oidentd.conf
+chmod a+r /etc/oidentd.conf
+
+mkdir -p /etc/profile.d/
+cat profile.d/mikaela.sh > /etc/profile.d/mikaela.sh
+chmod a+r /etc/profile.d/mikaela.sh
+
+mkdir -p /etc/systemd/system/
+cat systemd/system/oidentd.socket > /etc/systemd/system/oidentd.socket
+chmod a+r /etc/systemd/system/oidentd.socket
+
+mkdir -p /etc/sysctl.d/
+if [ ! -f /etc/sysctl.d/60-mikaela.conf ]; then
+    cat sysctl.d/60-mikaela.conf > /etc/sysctl.d/60-mikaela.conf
+    chmod a+r /etc/sysctl.d/60-mikaela.conf
+fi
+
+echo 'If you use systemd or oidentd you should "systemctl daemon-reload"'
+echo 'and "systemctl restart oidentd".'
+echo 'You should also "sysctl --system -p".'