From d447944eb579da5c71994a60dd4522e61a1ca9e4 Mon Sep 17 00:00:00 2001
From: David Schroeder <david@schroedercity.com>
Date: Thu, 29 Nov 2018 08:56:35 -0600
Subject: [PATCH] filewatcher

---
 filewatcher-install.sh | 48 ++++++++++++++++++++++++++++++++++++++++++
 filewatcher.sh         | 38 +++++++++++++++++++++++++++++++++
 2 files changed, 86 insertions(+)
 create mode 100755 filewatcher-install.sh
 create mode 100755 filewatcher.sh

diff --git a/filewatcher-install.sh b/filewatcher-install.sh
new file mode 100755
index 0000000..8a8f3df
--- /dev/null
+++ b/filewatcher-install.sh
@@ -0,0 +1,48 @@
+#!/bin/sh
+#
+# Monitor file $1 for changes
+# Send an alert emai to $2 if file $1 changes
+# usage: ffilewatcher /var/log/messages your.name@domain.com
+#
+
+source /dev/stdin <<< "$(curl -sL http://scity.xyz/colorsinc)"
+source /dev/stdin <<< "$(curl -sL http://scity.xyz/defaultinc)"
+	
+if type apt &>/dev/null; then
+	ATYPE="apt"
+elif type apt-get &>/dev/null; then
+	ATYPE="apt-get"
+elif type yum &>/dev/null; then
+	ATYPE="yum"
+else
+	ATYPE="unknown"
+	exit 1
+fi
+
+if [ "$EUID" -ne 0 ]; then APTFUNC="sudo ${ATYPE}"
+else APTFUNC="${ATYPE}"
+fi
+
+echo ""
+echo -e "${CS[color,LightGreen]}Filewatcher Installation Script${CS[color,Default]}"
+
+do_with_root $APTFUNC -y install inotify-tools
+
+do_with_root set -eu
+
+do_with_root mkdir /opt/filewatcher
+
+do_with_root wget  /opt/filewatcher/filewatcher.sh
+
+do_with_root ln -s /opt/filewatcher/filewatcher.sh /usr/local/bin/filewatcher
+do_with_root chmod +x /opt/filewatcher/filewatcher.sh
+
+
+echo ""
+echo -e "${CS[color,LightYellow]}Filewatcher has been Installed${CS[color,Default]}"
+echo ""
+echo -e "To run updates, use the command: ${CS[color,Green]}runup${CS[color,Default]}"
+echo ""
+echo ""
+
+exit 0
\ No newline at end of file
diff --git a/filewatcher.sh b/filewatcher.sh
new file mode 100755
index 0000000..c57a07e
--- /dev/null
+++ b/filewatcher.sh
@@ -0,0 +1,38 @@
+#!/bin/sh
+#
+# Monitor file $1 for changes
+# Send an alert emai to $2 if file $1 changes
+# usage: filewatcher /var/log/messages your.name@domain.com
+#
+
+if [ -z "$2" ]; then
+    echo "Usage: filewatcher /var/log/messages your.name@domain.com"
+    exit 1
+fi
+
+#if a inotifywait for this file is already running
+if [ $(ps aux | grep inotifywait | grep -c "$1" ) -gt '0' ]; then
+        echo "A process monitoring the file $1 is already running: $(ps aux | grep inotifywait | grep "$1" )";
+        exit 1;
+fi
+
+#if inotifywait exists
+type -P inotifywait &>/dev/null || { echo "Error: This script requires inotifywait(http://wiki.github.com/rvoicilas/inotify-tools/) .... apt-get install inotify-tools ... " >&2; exit 1; }
+
+#if the file exists
+# if [ -f $1 ]; then
+
+echo "Monitoring file $1 for changes - sending alerts to $2"
+
+while inotifywait -e modify -e attrib -e move -e delete $1 -o /opt/filewatcher/audit.log; do
+        sleep 1
+
+        # changes="$(tail -n5 $1)"
+
+        changes="$(cat /opt/filewatcher/audit.log)"
+                echo "The following change occurred in the file $1 : $changes" | mail -s "Change in $1" $2
+                rm /opt/filewatcher/audit.log
+                touch /opt/filewatcher/audit.log
+        done
+else
+        echo "Error: File $1 not found"