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Watch current directory and execute a command if anything in it changes
# Watch current directory (recursively) for file changes, and execute
# a command when a file or directory is created, modified or deleted.
# Written by: Senko Rasic <>
# Requires Linux, bash and inotifywait (from inotify-tools package).
# To avoid executing the command multiple times when a sequence of
# events happen, the script waits one second after the change - if
# more changes happen, the timeout is extended by a second again.
# Installation:
# chmod a+rx
# sudo cp /usr/local/bin
# Example use - rsync local changes to the remote server:
# rsync -avt . host:/remote/dir
# Released to Public Domain. Use it as you like.
if [ -z "$1" ]; then
echo "Usage: $0 cmd ..."
exit -1;
inotifywait -e "$EVENTS" -m -r --format '%:e %f' . | (
while true; do
read -t 1 LINE;
if test -z "$LINE"; then
if test ! -z "$WAITING"; then
echo "CHANGE";
done) | (
while true; do
read TMP;
echo $@

If you change "$@" to "eval $@" you will be able to run several commands.
Example: "rsync dest orig && notify-send Sucess || notify-send Failure"


15 minutes

if [ "$1"x = ""x ]; then
Watches for changes recursively, then goes on to execute your command
or script. It wait 2.5 minutes between executes. Good for syncing
directories or doing dynamic backups.
by Hydranix

Usage: DetectChanges "[ directory to watch ]" "[ command/script to execute ]" "[optional: time in second between executes]"
exit 0;
while [ ! -f /tmp/EXITHNx ]; do
sleep 3
inotifywait -r -e create -e delete -e move "${1}" &>/dev/null
if [ "$XSTA" = "0" ]; then
eval ${2}
touch /tmp/EXITHNx
exit 1
[[ -z ${3} ]] && sleep 150 || sleep ${3}
rm -f /tmp/EXITHNx


Unfortunately inotifywait does not work with mounted folders. I wanted to use it in my vagrant box, to copy files from eg. /vagrant/www/ to /var/www/ (which is the document root of apache). Mounting files directly to document root slows down php very much, so I thought this would be a nice idea.


@ArminVieweg Did you eventually find a solution for that? It's precisely what I was looking to do.


The version with eval published by @evgenius


What will be the benefit of running every x minutes (to trigger rsync) versus running rsync every x minutes? Is it just less demanding on the server?


why not use watch in homebrew?

brew info watch

source code here:


Because not everyone runs Mac?


Why can't I kill it with ctrl + c?

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