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Watch current directory and execute a command if anything in it changes
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#!/bin/bash | |
# | |
# 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 <senko.rasic@dobarkod.hr> | |
# | |
# 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 onchange.sh | |
# sudo cp onchange.sh /usr/local/bin | |
# | |
# Example use - rsync local changes to the remote server: | |
# | |
# onchange.sh rsync -avt . host:/remote/dir | |
# | |
# Released to Public Domain. Use it as you like. | |
# | |
EVENTS="CREATE,CLOSE_WRITE,DELETE,MODIFY,MOVED_FROM,MOVED_TO" | |
if [ -z "$1" ]; then | |
echo "Usage: $0 cmd ..." | |
exit -1; | |
fi | |
inotifywait -e "$EVENTS" -m -r --format '%:e %f' . | ( | |
WAITING=""; | |
while true; do | |
LINE=""; | |
read -t 1 LINE; | |
if test -z "$LINE"; then | |
if test ! -z "$WAITING"; then | |
echo "CHANGE"; | |
WAITING=""; | |
fi; | |
else | |
WAITING=1; | |
fi; | |
done) | ( | |
while true; do | |
read TMP; | |
echo $@ | |
$@ | |
done | |
) |
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