Question

我有一个输出以下输出的脚本：

总体状态 - 确定（采样周期9秒） - 物理驱动器名称=＆＃34; 0 C：＆＃34; （好） - _PercentIdleTime = 100％，_ PercentBusyTime = 0％， _PercentDiskTime = 1％，_ PercentDiskReadTime = 0％，_ PercentDiskWriteTime = 1％，_ DiskReadBytesPersec = 0.000B / sec，_DiskReadsPersec = 0.000 / sec，_DiskWriteBytesPersec = 0.00MB / sec，_DiskWritesPersec = 8.000 / sec，CurrentDiskQueueLength = 0，_AvgDiskQueueLength = 0.0，_AvgDiskReadQueueLength = 0.0，_AvgDiskWriteQueueLength = 0.0 |＆＃39; _PercentIdleTime0 C：＆＃39; = 100; ＆＃39; _PercentBusyTime0 C：＆＃39; = 0; ＆＃39; _PercentDiskTime0 C：＆＃39; = 1; ＆＃39; _PercentDiskReadTime0 C：＆＃39; = 0; ＆＃39; _PercentDiskWriteTime0 C：＆＃39; = 1; ＆＃39; _DiskReadBytesPersec0 C：＆＃39; = 0; ＆＃39; _DiskReadsPersec0 C：＆＃39; = 0; ＆＃39; _DiskWriteBytesPersec0 C：＆＃39; = 71917; ＆＃39; _DiskWritesPersec0 C：＆＃39; = 8; ＆＃39; CurrentDiskQueueLength0 C：＆＃39; = 0; ＆＃39; _AvgDiskQueueLength0 C：＆＃39; = 0.0; ＆＃39; _AvgDiskReadQueueLength0 C：＆＃39; = 0.0; ＆＃39; _AvgDiskWriteQueueLength0 C：＆＃39; = 0.0;

使用grep我想过滤除 _DiskWriteBytesPersec = 0.00MB

之外的所有内容

我在http://regexr.com/上使用了以下正则表达式来成功完成此操作：的（_ DiskWriteBytesPersec =（\ d *）？（\ d *）MB）

但是我在使用grep时遇到了困难。

Answer 1

正则表达式的问题是(_DiskWriteBytesPersec=(\d*)?.(\d*)MB)，它不支持\d而是使用[0-9]，您可以试试这个，它会正常工作。

echo "Overall Status - OK (Sample Period 9 sec) - Physical Drive Name="0 C:" (OK) - _PercentIdleTime=100%, _PercentBusyTime=0%, _PercentDiskTime=1%, _PercentDiskReadTime=0%, _PercentDiskWriteTime=1%, _DiskReadBytesPersec=0.000B/sec, _DiskReadsPersec=0.000/sec, _DiskWriteBytesPersec=0.00MB/sec, _DiskWritesPersec=8.000/sec, CurrentDiskQueueLength=0, _AvgDiskQueueLength=0.0, _AvgDiskReadQueueLength=0.0, _AvgDiskWriteQueueLength=0.0|'_PercentIdleTime0 C:'=100; '_PercentBusyTime0 C:'=0; '_PercentDiskTime0 C:'=1; '_PercentDiskReadTime0 C:'=0; '_PercentDiskWriteTime0 C:'=1; '_DiskReadBytesPersec0 C:'=0; '_DiskReadsPersec0 C:'=0; '_DiskWriteBytesPersec0 C:'=71917; '_DiskWritesPersec0 C:'=8; 'CurrentDiskQueueLength0 C:'=0; '_AvgDiskQueueLength0 C:'=0.0; '_AvgDiskReadQueueLength0 C:'=0.0; '_AvgDiskWriteQueueLength0 C:'=0.0;" | grep -Eo "_DiskWriteBytesPersec=[0-9]*?.[0-9]+MB";

使用grep -Eo "_DiskWriteBytesPersec=[0-9]*?.[0-9]+MB"

管道输出

命令输出： _DiskWriteBytesPersec=0.00MB

1。 E用于扩展正则表达式。

2。 O仅输出匹配的字符串。

正确地将输入输入到grep并对其执行正则表达式以获取数字和匹配的字符串

1 个答案: