日期:2014-05-16 浏览次数:20962 次
FILE_THIS="/var/tmp/this.txt"
FILE_LAST="/var/tmp/last.txt"
FOLDER="/var/tmp/aaa/"
while :; do
if [ -e "$FILE_THIS" ]; then
mv "$FILE_THIS" "$FILE_LAST"
ls "$FOLDER" > "$FILE_THIS"
diff "$FILE_THIS" "$FILE_LAST"
if [ $? == 0 ]; then
echo Not changed
else
echo Changed
fi
else
ls "$FOLDER" > "$FILE_THIS"
fi
# 可以通过调整sleep的时间来更改监控频率
sleep 5
done