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grep + 正则表达式匹配位于最后一个单词之前的单词

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grep + 正则表达式匹配位于最后一个单词之前的单词

我想捕获最后一个单词之前有 (XXXX) 单词的所有行

而 xxxxx - 是数字

 /opt/OV/bin/opcagt -status
 scopeux     Perf Agent data collector                        (5102)   Running
 midaemon    Measurement Interface daemon                     (5110)   Running
 ttd         ARM registration daemon                                   Running
 perfalarm   Alarm generator                                  (5111)   Running
 agtrep      OV Discovery Agent                  AGENT,AgtRep (5520)   Running
 coda        OV Performance Core                 COREXT       (5529)   Running
 opcacta     OVO Action Agent                    AGENT,EA     (5427)   Running
 opcle       OVO Logfile Encapsulator            AGENT,EA     (5443)   Running
 opcmona     OVO Monitor Agent                   AGENT,EA              Running
 opcmsga     OVO Message Agent                   AGENT,EA     (5435)   Running
 opcmsgi     OVO Message Interceptor             AGENT,EA     (5553)   Running
 ovbbccb     OV Communication Broker             CORE         (5352)   Running
 ovcd        OV Control                          CORE         (5344)   Running
 ovconfd     OV Config and Deploy                COREXT       (5383)   Running

我尝试与

/opt/OV/bin/opcagt -status | grep [0-9]

但是这个 grep 语法不能捕获最后一个单词之前的单词

预期成绩：

scopeux     Perf Agent data collector                        (5102)   Running
midaemon    Measurement Interface daemon                     (5110)   Running
perfalarm   Alarm generator                                  (5111)   Running
agtrep      OV Discovery Agent                  AGENT,AgtRep (5520)   Running
coda        OV Performance Core                 COREXT       (5529)   Running
opcacta     OVO Action Agent                    AGENT,EA     (5427)   Running
opcle       OVO Logfile Encapsulator            AGENT,EA     (5443)   Running
opcmsga     OVO Message Agent                   AGENT,EA     (5435)   Running
opcmsgi     OVO Message Interceptor             AGENT,EA     (5553)   Running
ovbbccb     OV Communication Broker             CORE         (5352)   Running
ovcd        OV Control                          CORE         (5344)   Running
ovconfd     OV Config and Deploy                COREXT       (5383)   Running

答案1

搜索(4-digits)<spaces>word行尾包含模式的行

grep -E '\([0-9]{4}\)\s*\w+$'

答案2

尝试

/opt/OV/bin/opcagt -status |  awk 'NF>2 && $(NF-1) ~ /\([0-9]*\)/ '

在哪里

  • $(NF-1)最后一个字段之前的匹配
  • ~让 awk 进行模式匹配
  • /\([0-0]*\)/模式是(，任意数量的数字并且)（您可以使用 [0-9][0-9]* 来获得至少一个。
  • 默认操作是打印。

答案3

你可以做：

... | grep -E '[[:blank:]]\([0-9]{4}\)[[:blank:]]+[^[[:blank:]]+$'

  • [[:blank:]]\([0-9]{4}\)匹配一个空格，后跟 4 位数字

  • [[:blank:]]+[^[[:blank:]]+$匹配末尾的一个或多个空格，后跟一个或多个非空格字符。

例子：

$ cat file.txt
scopeux     Perf Agent data collector                        (5102)   Running
 midaemon    Measurement Interface daemon                     (5110)   Running
 ttd         ARM registration daemon                                   Running
 perfalarm   Alarm generator                                  (5111)   Running
 agtrep      OV Discovery Agent                  AGENT,AgtRep (5520)   Running
 coda        OV Performance Core                 COREXT       (5529)   Running
 opcacta     OVO Action Agent                    AGENT,EA     (5427)   Running
 opcle       OVO Logfile Encapsulator            AGENT,EA     (5443)   Running
 opcmona     OVO Monitor Agent                   AGENT,EA              Running
 opcmsga     OVO Message Agent                   AGENT,EA     (5435)   Running
 opcmsgi     OVO Message Interceptor             AGENT,EA     (5553)   Running
 ovbbccb     OV Communication Broker             CORE         (5352)   Running
 ovcd        OV Control                          CORE         (5344)   Running
 ovconfd     OV Config and Deploy                COREXT       (5383)   Running

$ grep -E '[[:blank:]]\([0-9]{4}\)[[:blank:]]+[^[[:blank:]]+$' file.txt
scopeux     Perf Agent data collector                        (5102)   Running
 midaemon    Measurement Interface daemon                     (5110)   Running
 perfalarm   Alarm generator                                  (5111)   Running
 agtrep      OV Discovery Agent                  AGENT,AgtRep (5520)   Running
 coda        OV Performance Core                 COREXT       (5529)   Running
 opcacta     OVO Action Agent                    AGENT,EA     (5427)   Running
 opcle       OVO Logfile Encapsulator            AGENT,EA     (5443)   Running
 opcmsga     OVO Message Agent                   AGENT,EA     (5435)   Running
 opcmsgi     OVO Message Interceptor             AGENT,EA     (5553)   Running
 ovbbccb     OV Communication Broker             CORE         (5352)   Running
 ovcd        OV Control                          CORE         (5344)   Running
 ovconfd     OV Config and Deploy                COREXT       (5383)   Running

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