前提
awk是一种处理文本文件的语言，是一个强大的文本分析工具。
本文将使用命令awk将具有某个关键字的段落提取出来。
准备数据
"finalizer" #3 daemon prio=8 os_prio=0 tid=0x00007fb2dc1aa800 nid=0x63f6 in object.wait() [0x00007fb2be61f000] java.lang.thread.state: waiting (on object monitor) at java.lang.object.wait(native method) - waiting on <0x00000000d6708ed8> (a java.lang.ref.referencequeue$lock) at java.lang.ref.referencequeue.remove(referencequeue.java:144) - locked <0x00000000d6708ed8> (a java.lang.ref.referencequeue$lock) at java.lang.ref.referencequeue.remove(referencequeue.java:165) at java.lang.ref.finalizer$finalizerthread.run(finalizer.java:216) "reference handler" #2 daemon prio=10 os_prio=0 tid=0x00007fb2dc1a6000 nid=0x63f5 in object.wait() [0x00007fb2be720000] java.lang.thread.state: waiting (on object monitor) at java.lang.object.wait(native method) - waiting on <0x00000000d6706c00> (a java.lang.ref.reference$lock) at java.lang.object.wait(object.java:502) at java.lang.ref.reference.tryhandlepending(reference.java:191) - locked <0x00000000d6706c00> (a java.lang.ref.reference$lock) at java.lang.ref.reference$referencehandler.run(reference.java:153) "main" #1 prio=5 os_prio=0 tid=0x00007fb2dc04b800 nid=0x63ef waiting on condition [0x00007fb2e3382000] java.lang.thread.state: timed_waiting (sleeping) at java.lang.thread.sleep(native method) at com.test.test.main(test.java:16) at sun.reflect.nativemethodaccessorimpl.invoke0(native method) at sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:62) at sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43) at java.lang.reflect.method.invoke(method.java:498) at org.springframework.boot.loader.mainmethodrunner.run(mainmethodrunner.java:48) at org.springframework.boot.loader.launcher.launch(launcher.java:87) at org.springframework.boot.loader.launcher.launch(launcher.java:50) at org.springframework.boot.loader.jarlauncher.main(jarlauncher.java:51)
段落提取
假设我们需要的关键字为 nid=0x63ef
我要评论
keywords=0x63ef
## 以前后双换行符为一个段落
## 查询包含关键字nid=0x63ef的段落
awk 'begin {rs = "\n\n+";ors = "\n\n"} /'$awk,关键字段落,awk,提取关键字'/ {print $0}' test.log
## 查询不包含关键字nid=0x63ef的段落
awk 'begin {rs = "\n\n+";ors = "\n\n"} !/'$awk,关键字段落,awk,提取关键字'/ {print $0}' test.log
总结
以上所述是小编给大家介绍的linux 中awk 提取包含某个关键字的段落，希望对大家有所帮助
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