sed如何根据需求截取区间内容（工作需要）求大神指导

moperyblue

回复 20# kkshaq

1. head file |cat -A

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blackold

假设以"真"空行分段。

1. sed ':n;/^---\|Start and End Time/,/^$/{$!N;/\n$/!{$!bn};/Share[^\n]*Total[^\n]*\n.\|Start Time:/b};d' urfile

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1. awk -v RS='' -v ORS='\n\n' -F '\n' 'NF>3 && $NF !~ /Share.*Total Value/' urfile

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kkshaq

回复 19# moperyblue


能不能一步一步的解释一下代码啊，我看了好久没看懂！！反应不够快啊
sed -r '/Start and/,/End Time/{/^\s+End Time/G};/-/{:a;$!N;/\n\s*$/!{$!ba};s/\n/&/5;t};d'


sed -r '/Start and/,/End Time/{/^\s+End Time/G}’这部的作用是啥啊？




后面的/-/{:a;$!N;/\n\s*$/!{$!ba};s/\n/&/5;t};d是什么意思呢。。希望能够解释一下！谢谢

夜色58

egrep -B 3 "[1-9]+" file
可以试试我这个行不？

夜色58

egrep -B 3 "[1-9]+" file  


试试我的能达到你想要的结果吗？！！！！

karma303

学习了～～

moperyblue

回复 23# kkshaq


    sed -r '/Start and/,/End Time/{/^\s+End Time/G;b}’这部的作用是啥啊？
=>
就是以下这部分数据最后追加一个"\n"(即一个空行),然后b就是跳到命令结尾 让pattern space被打印出来

1. Start and End Time:
   
2. -------------------------------------------------------------------------------
   
3.    Start Time:  2016-08-08 18:43:11.126569426
   
4.    End Time:    2016-08-09 04:50:10.248093935

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后面的/-/{:a;$!N;/\n\s*$/!{$!ba};s/\n/&/5;t};d是什么意思呢。。希望能够解释一下！谢谢
=>
将"-"的行到以单独"空格或tab"组成的行追加到pattern space
然后判断这个pattern space 也就是这段数据是否含有6行(即 5个"\n"),如果有的话就直接跳转(t)到命令结尾,让pattern space被打印出来
如下面这段在pattern space中只含有4个"\n",不符合条例,不执行t命令,所以这个pattern space的内容最终会被删掉:

1. -------------------------------------------------------------------------------
   
2. Status Codes of getAuthentication:
   
3. -------------------------------------------------------------------------------
   
4.    Share [%]    Total Value
   
5.    

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而下面这段就有6个"\n",有7行数据,当执行s/\n/&/5时,成功的.所以会执行t命令跳转到命令结尾 pattern space就会被打印出来(如果没有加-n选项的话)

1. -------------------------------------------------------------------------------
   
2. Status Codes of APNSNotification:
   
3. -------------------------------------------------------------------------------
   
4.    Share [%]    Total Value
   
5.        90.48       19 0
   
6.         9.52        2 21
   
7.    

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其它不合条件的行都将被删除(d)

RE_HASH

$>  grep -B4 -P '[0-9]\.' --group-separator=$'\n'  log
Start and End Time:
-------------------------------------------------------------------------------
   Start Time:  2016-08-08 18:43:11.126569426
   End Time:    2016-08-09 04:50:10.248093935


-------------------------------------------------------------------------------
SES Actions:
-------------------------------------------------------------------------------
   Share [%]    Total Value
       44.96       58 pushTokenMgmt
       34.11       44 pushAppMessage
       16.28       21 APNSNotification
        3.10        4 sppPushMessage
        1.55        2 identitiesMapMessage


-------------------------------------------------------------------------------
Error Codes of sppPushMessage:
-------------------------------------------------------------------------------
   Share [%]    Total Value
      100.00        2 VALIDATION_FAILURE


-------------------------------------------------------------------------------
Status Codes of APNSNotification:
-------------------------------------------------------------------------------
   Share [%]    Total Value
       90.48       19 0
        9.52        2 21


-------------------------------------------------------------------------------
Records of XforwardedFor:
-------------------------------------------------------------------------------
   Share [%]    Total Value
      100.00        4 10.175.147.226


-------------------------------------------------------------------------------
Redelivery Times of APNS Message:
-------------------------------------------------------------------------------
   Share [%]    Total Value
      100.00       21 0


-------------------------------------------------------------------------------
ServiceName of PushAppMessage:
-------------------------------------------------------------------------------
   Share [%]    Total Value
       33.33       10 vvm
       20.00        6 vowifi
       10.00        3 gen,icloudvowifi,vowifi
        6.67        2 chan1,chan2
        6.67        2 icloudvowifi
        6.67        2 gen
        6.67        2 mca
        3.33        1 testingchannel,vowifi
        3.33        1 conn_mgr,vvm
        3.33        1 multi-sim


-------------------------------------------------------------------------------
ServiceName of SppPushMessage:
-------------------------------------------------------------------------------
   Share [%]    Total Value
       50.00        2 undefined
       50.00        2 vvm


-------------------------------------------------------------------------------
ServiceName of APNSNotification:
-------------------------------------------------------------------------------
   Share [%]    Total Value
       38.10        8 vowifi
       23.81        5 icloudvowifi
       14.29        3 gen
        4.76        1 chan2
        4.76        1 chan1
        4.76        1 vvm
        4.76        1 conn_mgr
        4.76        1 multi-sim


-------------------------------------------------------------------------------
ServiceName of PushTokenMgmt:
-------------------------------------------------------------------------------
   Share [%]    Total Value
       29.09       16 vowifi
       18.18       10 gen
       14.55        8 icloudvowifi
       12.73        7 vvm
       10.91        6 mca
        3.64        2 chan2
        3.64        2 chan1
        3.64        2 multi-sim
        3.64        2 conn_mgr

RE_HASH

$>  grep -B4 -P '[0-9]\.' --no-group-separator  log
Start and End Time:
-------------------------------------------------------------------------------
   Start Time:  2016-08-08 18:43:11.126569426
   End Time:    2016-08-09 04:50:10.248093935
-------------------------------------------------------------------------------
SES Actions:
-------------------------------------------------------------------------------
   Share [%]    Total Value
       44.96       58 pushTokenMgmt
       34.11       44 pushAppMessage
       16.28       21 APNSNotification
        3.10        4 sppPushMessage
        1.55        2 identitiesMapMessage
-------------------------------------------------------------------------------
Error Codes of sppPushMessage:
-------------------------------------------------------------------------------
   Share [%]    Total Value
      100.00        2 VALIDATION_FAILURE
-------------------------------------------------------------------------------
Status Codes of APNSNotification:
-------------------------------------------------------------------------------
   Share [%]    Total Value
       90.48       19 0
        9.52        2 21
-------------------------------------------------------------------------------
Records of XforwardedFor:
-------------------------------------------------------------------------------
   Share [%]    Total Value
      100.00        4 10.175.147.226
-------------------------------------------------------------------------------
Redelivery Times of APNS Message:
-------------------------------------------------------------------------------
   Share [%]    Total Value
      100.00       21 0
-------------------------------------------------------------------------------
ServiceName of PushAppMessage:
-------------------------------------------------------------------------------
   Share [%]    Total Value
       33.33       10 vvm
       20.00        6 vowifi
       10.00        3 gen,icloudvowifi,vowifi
        6.67        2 chan1,chan2
        6.67        2 icloudvowifi
        6.67        2 gen
        6.67        2 mca
        3.33        1 testingchannel,vowifi
        3.33        1 conn_mgr,vvm
        3.33        1 multi-sim
-------------------------------------------------------------------------------
ServiceName of SppPushMessage:
-------------------------------------------------------------------------------
   Share [%]    Total Value
       50.00        2 undefined
       50.00        2 vvm
-------------------------------------------------------------------------------
ServiceName of APNSNotification:
-------------------------------------------------------------------------------
   Share [%]    Total Value
       38.10        8 vowifi
       23.81        5 icloudvowifi
       14.29        3 gen
        4.76        1 chan2
        4.76        1 chan1
        4.76        1 vvm
        4.76        1 conn_mgr
        4.76        1 multi-sim
-------------------------------------------------------------------------------
ServiceName of PushTokenMgmt:
-------------------------------------------------------------------------------
   Share [%]    Total Value
       29.09       16 vowifi
       18.18       10 gen
       14.55        8 icloudvowifi
       12.73        7 vvm
       10.91        6 mca
        3.64        2 chan2
        3.64        2 chan1
        3.64        2 multi-sim
        3.64        2 conn_mgr

RE_HASH

$>  grep -B4 -P '[0-9]\.' --group-separator='' log
Start and End Time:
-------------------------------------------------------------------------------
   Start Time:  2016-08-08 18:43:11.126569426
   End Time:    2016-08-09 04:50:10.248093935

-------------------------------------------------------------------------------
SES Actions:
-------------------------------------------------------------------------------
   Share [%]    Total Value
       44.96       58 pushTokenMgmt
       34.11       44 pushAppMessage
       16.28       21 APNSNotification
        3.10        4 sppPushMessage
        1.55        2 identitiesMapMessage

-------------------------------------------------------------------------------
Error Codes of sppPushMessage:
-------------------------------------------------------------------------------
   Share [%]    Total Value
      100.00        2 VALIDATION_FAILURE

-------------------------------------------------------------------------------
Status Codes of APNSNotification:
-------------------------------------------------------------------------------
   Share [%]    Total Value
       90.48       19 0
        9.52        2 21

-------------------------------------------------------------------------------
Records of XforwardedFor:
-------------------------------------------------------------------------------
   Share [%]    Total Value
      100.00        4 10.175.147.226

-------------------------------------------------------------------------------
Redelivery Times of APNS Message:
-------------------------------------------------------------------------------
   Share [%]    Total Value
      100.00       21 0

-------------------------------------------------------------------------------
ServiceName of PushAppMessage:
-------------------------------------------------------------------------------
   Share [%]    Total Value
       33.33       10 vvm
       20.00        6 vowifi
       10.00        3 gen,icloudvowifi,vowifi
        6.67        2 chan1,chan2
        6.67        2 icloudvowifi
        6.67        2 gen
        6.67        2 mca
        3.33        1 testingchannel,vowifi
        3.33        1 conn_mgr,vvm
        3.33        1 multi-sim

-------------------------------------------------------------------------------
ServiceName of SppPushMessage:
-------------------------------------------------------------------------------
   Share [%]    Total Value
       50.00        2 undefined
       50.00        2 vvm

-------------------------------------------------------------------------------
ServiceName of APNSNotification:
-------------------------------------------------------------------------------
   Share [%]    Total Value
       38.10        8 vowifi
       23.81        5 icloudvowifi
       14.29        3 gen
        4.76        1 chan2
        4.76        1 chan1
        4.76        1 vvm
        4.76        1 conn_mgr
        4.76        1 multi-sim

-------------------------------------------------------------------------------
ServiceName of PushTokenMgmt:
-------------------------------------------------------------------------------
   Share [%]    Total Value
       29.09       16 vowifi
       18.18       10 gen
       14.55        8 icloudvowifi
       12.73        7 vvm
       10.91        6 mca
        3.64        2 chan2
        3.64        2 chan1
        3.64        2 multi-sim
        3.64        2 conn_mgr