Script to ease setting up SSH connections.

diff --git a/all_new_2018/prepare_to_meet_server.sh b/all_new_2018/prepare_to_meet_server.sh
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+++ b/all_new_2018/prepare_to_meet_server.sh
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+#!/bin/sh
+# Do some of the steps necessary to SSH (key-based) with another server.
+set -e
+
+target="$1"
+
+# We need a public key to copy over, so generate it if not found.
+if [ ! -f ~/.ssh/id_rsa.pub ]; then
+    ssh-keygen
+fi
+
+# Add target to ~/.ssh/known_hosts so we don't get
+# asked for permission at inopportune moments.
+ssh-keyscan -H "$target"
+
+# Tell user what to do.
+echo "APPEND FOLLOWING TO TARGET'S ~/.ssh/authorized_keys:"
+cat ~/.ssh/id_rsa.pub