linux 查看日志

1.需求：查看日志是否发送邮件成功

2.数据库中查到相关的id号

代码：cat -n test.log |grep "地形"  得到关键日志的行号

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1 2	[**@app3.*s:/app/local/jboss/tw/log]$ cat -n server.log|grep '779571' 1933    2017-05-25 00:23:09,245 DEBUG [com.ticketweb.report.service.ReportManagementBean] Current scheduled report's saved report id: 779571

得到关键日志的行号,此时如果我想

查看这个关键字前10行和后10行的日志: cat -n server.log |tail -n +1933 |head -n 20

tail -n +1933 表示查询1933 行之后的日志

head -n 20 则表示在前面的查询结果里再查前20条记录

 

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

[*@app3.*cs:/app/local/jboss/tw/log]$ cat -n server.log|tail -n +1923|head -n 20   1923  2017-05-25 00:23:09,242 DEBUG [com.*.ReportManagementBean] Calling MailService.sendEmail(message) to send Email for scheduledReport id:602541   1924  2017-05-25 00:23:09,242 DEBUG [com.*.ReportManagementBean] To:tcttemplate@gmail.com   1925  2017-05-25 00:23:09,242 DEBUG [com.*.ReportManagementBean] CC:null   1926  2017-05-25 00:23:09,242 DEBUG [com.*.ReportManagementBean] Subject:alam test 3 uk   1927  2017-05-25 00:23:09,242 DEBUG [com.*.ReportManagementBean] Report sent by MailService.sendEmail(message).Please see attached for the reports.   1928  2017-05-25 00:23:09,244 DEBUG [com.*.schedulable.ReportEmailSendHelper] Email sent on: 2017-05-25 00:23:09.244   1929  2017-05-25 00:23:09,244 DEBUG [com.*.schedulable.ReportEmailSendHelper] Emailing report id: 602611 , name: alam master uk 11   1930  2017-05-25 00:23:09,245 DEBUG [com.*.ReportEmailSendHelper] Emailing starts on2017-05-25 00:23:09.244   1931  2017-05-25 00:23:09,245 DEBUG [com.*.ReportManagementBean] Current scheduled report id: 602611   1932  2017-05-25 00:23:09,245 DEBUG [com.*.ReportManagementBean] Current scheduled report's orgId: 4   1933  2017-05-25 00:23:09,245 DEBUG [com.*.ReportManagementBean] Current scheduled report's saved report id: 779571   1934  2017-05-25 00:23:09,245 DEBUG [com.*.ReportManagementBean] Current scheduled report's saved report's eid: null   1935  2017-05-25 00:23:09,246 DEBUG [com.*.ReportManagementBean] Generating the TemplateReportConfig by calling ReportConfigFactory.getConfig(...)   1936  2017-05-25 00:23:09,270 DEBUG [com.*.ReportManagementBean] Initializing the TemplateReportConfig object...   1937  2017-05-25 00:23:09,270 DEBUG [com.*.ReportManagementBean] The value of txDate_toDate has been cut off to the prev day mid night:2017-05-24+23:59:59   1938  2017-05-25 00:23:09,270 DEBUG [com.*.ReportManagementBean] The value of txDate_toDate has been cut off to the prev day mid night:2017-05-24+23:59:59   1939  2017-05-25 00:23:09,270 DEBUG [com.*.ReportManagementBean] The value of txDate_toDate has been cut off to the prev day mid night:2017-05-24+23:59:59   1940  2017-05-25 00:23:09,270 DEBUG [com.*.ReportManagementBean] saved report param name is: country saved report param value is GB   1941  2017-05-25 00:23:09,270 DEBUG [com.*.ReportManagementBean] The value of txDate_toDate has been cut off to the prev day mid night:2017-05-24+23:59:59   1942  2017-05-25 00:23:09,270 DEBUG [com.*.ReportManagementBean] Initialized the TemplateReportConfig object successfully.