Question

我想使用AWK在Windows应用程序事件日志中搜索字符串。以下是日志摘录：

W  05-Nov-14 10:09:36   261 CA_OSC          <I>Process ax_be has finished without having received an explicit termination request from the component manager    </I>
                                                                    Time: 5.11.2014, 10:09:36, Line: 1161, File: \MCom\src\OSS\compmgr\src/CaCompPCB.cpp, Process: CaGenericMain (2448)
E  05-Nov-14 10:09:36   17  AY_ISC           An error was detected in a process that is monitored by State Manager.    
                                                                    Time: 5.11.2014, 10:09:36, Process: C:\AXM\Service\bin\Rep.exe_1976,
                                                                    Text: (05.11.2014 10:09:36) IVS SET: CMonitorThread::ProcessTermination(AppBE,5452) A critical process has
W  05-Nov-14 10:09:37   261 CA_OSC          <I>Process main_ui has finished without having received an explicit termination request from the component manager    </I>
                                                                    Time: 5.11.2014, 10:09:37, Line: 1161, File: \MCom\src\OSS\compmgr\src/CaCompPCB.cpp, Process: CaGenericMain (2448)

我想在事件日志中搜索一个字符串“ProcessTermination”，搜索输出应该如下：

E  05-Nov-14 10:09:36   17  AY_ISC           An error was detected in a process that is monitored by State Manager.    
                                                                    Time: 5.11.2014, 10:09:36, Process: C:\AXM\Service\bin\Rep.exe_1976,
                                                                    Text: (05.11.2014 10:09:36) IVS SET: CMonitorThread::ProcessTermination(AppBE,5452) A critical process has

即。找到匹配项时的日志和所有摘要行。搜索字符串可以在日志行或任何摘要行中。每行由新行字符分隔，此日志文件是.txt文件。

到目前为止，我尝试了以下命令：

awk -v RS="\n(E|I|W)" "/ProcessTermination/" XA135420_2014_11_05_AppEventLog.txt

但结果却缺少E | I | W.即。我得到了结果

  05-Nov-14 10:09:36    17  AY_ISC           An error was detected in a process that is monitored by State Manager.    
                                                                    Time: 5.11.2014, 10:09:36, Process: C:\AXM\Service\bin\Rep.exe_1976,
                                                                    Text: (05.11.2014 10:09:36) IVS SET: CMonitorThread::ProcessTermination(AppBE,5452) A critical process has

有人可以帮我列出结果中的W | E | I（日志行的第一个字段）吗？

注意：我在Windows 7上使用GNU Awk 3.1.6。

Answer 1

使用awk

将段落加载到内存中

awk '/^[EIW]/{if( P ~ /ProcessTermination/)print P;P=""}{P=P"\n"$0}END{if( P ~ /ProcessTermination/)print P}' XA135420_2014_11_05_AppEventLog.txt

对于字段定义，您可以使用FPAT代替FS来定义字段内容而不是字段分隔符，但我不知道＆＃34; RPAT＆＃ 34;

Answer 2

通过像你一样设置RS，你将从记录中删除匹配RS的字符串并使你的脚本特定于gawk，这些都不是理想的。您可以通过保存每个RT值并在下一条记录之前打印它来解决问题：

$ awk -v RS='(^|\n)\\S' '/ProcessTermination/{print gensub(/^\n|\n$/,"","g",p$0)} {p=RT}' file
E  05-Nov-14 10:09:36   17  AY_ISC           An error was detected in a process that is monitored by State Manager.
                                                                    Time: 5.11.2014, 10:09:36, Process: C:\AXM\Service\bin\Rep.exe_1976,
                                                                    Text: (05.11.2014 10:09:36) IVS SET: CMonitorThread::ProcessTermination(AppBE,5452) A critical process has

要删除自gensub()以换行符或文件开头启动以来每个RT以外的每个RS所需的$ cat tst.awk /^[WEI]/ { check() } { buf = buf $0 RS } END { check() } function check() { if ( index(buf,tgt) ) { printf "%s", buf } buf = "" } $ $ awk -v tgt="ProcessTermination" -f tst.awk file E 05-Nov-14 10:09:36 17 AY_ISC An error was detected in a process that is monitored by State Manager. Time: 5.11.2014, 10:09:36, Process: C:\AXM\Service\bin\Rep.exe_1976, Text: (05.11.2014 10:09:36) IVS SET: CMonitorThread::ProcessTermination(AppBE,5452) A critical process has，并删除尾随newline，文件中的最后一条记录以此结束，因为它没有后续的RS匹配来吸收它自然结束的换行符。

更清晰，更简单的解决方案不使用RT并适用于任何awk：

index()

如果您确实想要搜索字符串而不是正则表达式，请注意使用上面的/.../代替match()或<ul> <li ng-repeat="message in messages"> Message data located at node /messages/{{ message.$id }} Message text is {{ message.text }} </li> </ul>。

如何在AWK的搜索结果中打印缺失的字段？

2 个答案: