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Grepping out one value in multiple line file

  • 04-11-2008 12:09pm
    #1
    veryangryman
    Registered Users, Registered Users 2 Posts: 5,659 ✭✭✭


    Hi all

    Looking to just take out the value below out of this file. Do you have unix command that can do this handy?



    SERVER (IMH_FMAI_server)
    Identity start #rcv #snd top BS top Q curr Q
    ======== ===== ==== ==== ====== ===== ======
    159.107.173.173.49912 20081104100014 315824 342893 1664 23 23


    CLIENT COUNTERS
    Identity start #rcv #snd top BS curr BS top Q curr Q
    ======== ===== ==== ==== ====== ======= ===== ======
    159.107.173.173.27847 20081104100014 2 6 116 116 -1 0
    159.107.173.173.27864 20081104100014 1 0 116 116 -1 0
    159.107.173.173.35480 20081104100014 1 0 460 500 -1 0
    159.107.173.173.35483 20081104100014 1 0 460 500 -1 0
    159.107.173.173.35486 20081104100014 1 0 460 500 -1 0
    159.107.173.173.35490 20081104100014 2 0 484 0 -1 0
    159.107.173.173.35491 20081104100014 1 0 468 508 -1 0
    159.107.173.173.35495 20081104100014 1 0 472 512 -1 0
    159.107.173.173.35498 20081104100014 1 0 460 500 -1 0
    159.107.173.173.35501 20081104100014 1 0 460 500 -1 0
    159.107.173.173.46775 20081104100014 6 4 144 112 -1 0
    159.107.173.173.35543 20081104100014 1 0 464 504 -1 0
    159.107.173.173.35546 20081104100014 1 0 460 500 -1 0
    159.107.173.173.46968 20081104100014 9794 3 1348 1196 -1 0
    159.107.173.173.35630 20081104100014 203412 0 1024 0 -1 0
    159.107.173.173.35526 20081104100014 1 0 460 500 -1 0
    159.107.173.173.17330 20081104100014 31496 314350 1076 0 -1 23

    SERVER (IMH_alarm_server)
    Identity start #rcv #snd top BS top Q curr Q
    ======== ===== ==== ==== ====== ===== ======
    159.107.173.173.49911 20081104100017 315346 173108 1732 43325 0


    CLIENT COUNTERS
    Identity start #rcv #snd top BS curr BS top Q curr Q
    ======== ===== ==== ==== ====== ======= ===== ======
    159.107.173.173.27843 20081104100017 2 0 68 68 -1 0
    159.107.173.173.34917 20081104100017 12 0 348 68 -1 0
    159.107.173.173.46772 20081104100017 1 5939 72 72 -1 0
    159.107.173.173.17329 20081104100017 315314 0 1732 828 -1 0
    FMAI*****


Comments

  • #2
    liamo
    Registered Users, Registered Users 2 Posts: 1,193 ✭✭✭liamo


    Assuming that
    1. The value you want will always be on the 4th line
    2. The fields are always delimited with a space
    3. The value you want will always be in the 7th position

    this should do the trick:

    head -n4 myfile | tail -n1 | cut -d" " -f 7
    (where "myfile" is the name of your file)

    Regards,

    Liam


  • #3
    brianmc
    Registered Users, Registered Users 2 Posts: 868 ✭✭✭brianmc


    veryangryman wrote: »
    Hi all

    Looking to just take out the value below out of this file. Do you have unix command that can do this handy?



    SERVER (IMH_FMAI_server)
    Identity start #rcv #snd top BS top Q curr Q
    ======== ===== ==== ==== ====== ===== ======
    159.107.173.173.49912 20081104100014 315824 342893 1664 23 23

    Alternately if it's always the last value on the 3rd line after the first "SERVER" line then try a bit of awk...
    
awk 'BEGIN { LNO = 0 } /^SERVER/ { if (LNO == 0) { LNO = NR + 3 } } NR == LNO { print $NF; exit }' inputfile.txt

    ^^^ That's not tested.


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