我正在使用以下"脚本"监视服务器上的端口:
l_TELNET=`echo "quit" | telnet server.domain.tld 12345 | grep "Escape character is"`
if [ "$?" -ne 0 ]; then
echo "Connection to $SERVER on port $PORT failed"
#Something happens here if Service (port) down
exit 1
else
#Something happens here if Service (port) up
exit 0
fi
如何将其修改为仅执行" Service down"部分第一次时间检测到服务已关闭(直到它下一次备份),而不是服务继续停止时每五分钟一次?
答案 0 :(得分:1)
使用临时文件怎么样?
l_TELNET=`echo "quit" | telnet server.domain.tld 12345 | grep "Escape character is"`
if [ "$?" -ne 0 ]; then
if [ ! -f /tmp/12345down]; then
echo "Connection to $SERVER on port $PORT failed"
#Something happens here if Service (port) down
touch /tmp/12345down
exit 1
fi
exit 0
else
#Something happens here if Service (port) up
if [ -f /tmp/12345down]; then
rm -f /tmp/12345down
fi
exit 0
fi