linux中awk高级应用的示例分析

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处理前的文档：

 Mike Harrington:(510) 548-1278:250:100:175
 Christian Dobbins:(408) 538-2358:155:90:201
 Susan Dalsass:(206) 654-6279:250:60:50
 Archie McNichol:(206) 548-1348:250:100:175
 Jody Savage:(206) 548-1278:15:188:150
 Guy Quigley:(916) 343-6410:250:100:175
 Dan Savage:(406) 298-7744:450:300:275
 Nancy McNeil:(206) 548-1278:250:80:75
 John Goldenrod:(916) 348-4278:250:100:175
 Chet Main:(510) 548-5258:50:95:135
 Tom Savage:(408) 926-3456:250:168:200
 Elizabeth Stachelin:(916) 440-1763:175:75:300

需要的结果如下：
                ***CAMPAIGN 1998 CONTRIBUTIONS***

Name                   PHone                   Jan |   Feb |   MAR |   Total Donated
---------------------------------------------------------------------------------
 
Mike Harrington         (510) 548-1278          250     100     175     525
Christian Dobbs         (408) 538-2358          155     90      201     446
Susan Dalsass           (206) 654-6279          250     60      50      360
Archie McNichol         (206) 548-1348          250     100     175     525
Jody Savage             (206) 548-1278          15      188     150     353
Guy Quigley             (916) 343-6410          250     100     175     525
Dan Savage              (406) 298-7744          450     300     275     1025
Nancy McNeil            (206) 548-1278          250     80      75      405
John Goldenrod          (916) 348-4278          250     100     175     525
Chet Main               (510) 548-5258          50      95      135     280
Tom Savage              (408) 926-3456          250     168     200     618
Elibeth Stachel         (916) 440-1763          175     75      300     550

 SUMMARY
-----------------------------------------------------------------------------------
The campan received atotal of $6137 for this quarter
average donation for the 12 contributors was $511.417.
The highest contribution was $450.
The lowest contribution was $15.

代码如下：

BEGIN{FS=":";low1=300;low2=400;low3=500
    OFS="\t"
    print "\t\t***CAMPAIGN 1998 CONTRIBUTIONS***\n"
    print "---------------------------------------------------------------------------------\n"
    print " Name\t\t\tPHone\t\t\tJan |\tFeb |\tMAR |\tTotal Donated"
    print "---------------------------------------------------------------------------------\n"
    }
 
{tot=$3+$4+$5}
{Ttot+=tot}
{print $1,"\t"$2"\t\t"$3" \t"$4" \t"$5" \t"tot}
{avg=Ttot/12}
{high2=(high2>$3)?high2:$3}
{high3=(high2>$4)?high2:$4}
{high4=(high2>$5)?high2:$5}
{max12=(high2>high3)?high2:high3}
{max23=(high3>high4)?high3:high4}
{Max=(max12>max23)?max12:max23}
{low1=(low1<$3)?low1:$3}
{low2=(low1<$4)?low1:$4}
{low3=(low1<$5)?low1:$5}
{min12=(low1<low2)?low1:low2}
{min23=(low2<low3)?low2:low3}
{Min=(min12<min23)?min12:min23}
 
END{
    print "-----------------------------------------------------------------------------------"
    print"\t\tSUMMARY"
    print "-----------------------------------------------------------------------------------"
    printf "The campan received atotal of $";printf Ttot; print " for this quarter"
    printf "average donation for the 12 contributors was $"; printf avg ;print"."
    printf "The highest contribution was $";printf Max;print "."
    printf "The lowest contribution was $";printf Min;print "." 
}

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