Mysql日志有类似的内容：
1649560 Query select * from actions where uniqueid like 'ernie-1328697839.1233158-%-dequeue' and class='queue' and server='ernie' and time<='1328698322' and action='dequeue' limit 1
1649560 Query select * from actions where uniqueid like 'ernie-1328697839.1233158-%-dequeue' and class='queue' and server='ernie' and time<='1328698322' and action='dequeue' limit 1
1649560 Query select * from actions where uniqueid like 'ernie-1328697839.1233158-%-dequeue' and class='queue' and server='ernie' and time<='1328698322' and action='dequeue' limit 1
1649560 Query select * from actions where uniqueid like 'ernie-1328697839.1233158-%-dequeue' and class='queue' and server='ernie' and time<='1328698322' and action='dequeue' limit 1
1649560 Query select * from actions where uniqueid like 'ernie-1328697839.1233158-%-dequeue' and class='queue' and server='ernie' and time<='1328698322' and action='dequeue' limit 1
1649560 Query select * from actions where uniqueid like 'ernie-1328697839.1233158-%-dequeue' and class='queue' and server='ernie' and time<='1328698322' and action='dequeue' limit 1
1649560 Query select * from actions where uniqueid like 'ernie-1328697839.1233158-%-dequeue' and class='queue' and server='ernie' and time<='1328698322' and action='dequeue' limit 1
1649560 Query select * from actions where uniqueid like 'ernie-1328697839.1233158-%-dequeue' and class='queue' and server='ernie' and time<='1328698322' and action='dequeue' limit 1
我想要一个bash-shell脚本，它将执行以下操作：
- 脚本将实时扫描
mysql.log文件（类似于tail -F mysql.log） - 如果它遇到5个连续的相同行，那么它将调用一些命令（比如
echo "yes"）
awk '$0 != l { l=$0; c=0 }
l=$0 {c++; if (c>=5) {system("YOURCOMMAND HERE")}}' LOGFILE
可以为你做。。。但你说的实时是什么意思？如果它必须不断运行，请为它设置一些fifo机制，或者类似的机制。或者简单地做：
tail -F LOGFILE | <THEABOVE_AWK_SCRIPT>