--- /dev/null
+#!/bin/sh
+# 2016-01-06, alex@barton.de
+
+# Include "ax-common.sh":
+for dir in "$HOME/lib" "$HOME/.ax" /usr/local /opt/ax /usr; do
+ [ -z "$ax_common_sourced" ] || break
+ ax_common="${dir}/lib/ax/ax-common.sh"
+ [ -r "$ax_common" ] && source "$ax_common"
+done
+if [ -z "$ax_common_sourced" ]; then
+ function ax_msg() {
+ echo "$2"
+ }
+ function ax_abort() {
+ ax_msg - "$@"
+ exit 1
+ }
+fi
+unset dir ax_common ax_common_sourced
+
+ax_msg - "Updating Homebrew installation ..."
+brew update || ax_abort "Update failed!"
+echo
+
+outdated=$( brew outdated --quiet | wc -l | tr -d '\t ' )
+if [ $outdated -gt 0 ]; then
+ ax_msg - "$outdated formula outdated:"
+ brew outdated || ax_abort "Failed to list outdated packages!"
+ echo
+ brew upgrade --all || ax_abort "Upgrade failed!"
+ brew linkapps --local || ax_abort "Linking of applications failed!"
+
+ echo
+ brew cleanup || ax_abort "\"brew cleanup\" failed!"
+ brew prune || ax_abort "\"brew prune\" failed!"
+else
+ ax_msg - "Nothing outdated."
+fi