Add a script for detecting high disk usage

ctrueden · ctrueden · commit b46879529fac · 2015-01-16T12:00:27.000-06:00
diff --git a/disk-usage.sh b/disk-usage.sh
@@ -0,0 +1,31 @@
+#!/bin/sh
+
+# disk-usage.sh - report when disk space starts getting low
+
+# Credit to:
+# http://www.cyberciti.biz/faq/mac-osx-unix-get-an-alert-when-my-disk-is-full/
+
+check() {
+	FS="$1"
+	OUTPUT=($(LC_ALL=C df -P ${FS}))
+	CURRENT=$(echo ${OUTPUT[11]} | sed 's/%//')
+	[ $CURRENT -gt $threshold ] && \
+		echo "$FS: file system usage at $CURRENT%" && \
+		return 1
+	return 0
+}
+
+threshold=80
+while test $# -gt 0
+do
+	case "$1" in
+	--threshold|-t)
+		shift
+		threshold=$1
+		;;
+	*)
+		check "$1"
+		;;
+	esac
+	shift
+done
