awk抓住文本进入下一行

时间:2010-11-02 15:17:51

标签: shell awk

我有以下问题,也许你可以提供帮助:

我想要匹配的文字是这样的:

Data Generated using Turbine's method
Stuff
more Stuff
Full speed : 0.87
Data generated using My method
Stuff
more stuff
Full speed : 0.96

Data Generated using Turbine's method
Stuff
more Stuff
Full speed : 0.83
Data generated using My method
Stuff
more stuff
Full speed : 0.94

我希望匹配包含全速的行并将它们输出到这样的表中:

Turbine's My
0.87    0.96
0.83    0.94

所以我可以比较两种方法。但是我无法获得与当前正则表达式匹配的awk:

/Data Generated using Turbine's method.*Full speed/
/Data Generated using My method.*Full speed/

我的问题到底是什么?为什么awk不符合这个?

感谢您的建议

3 个答案:

答案 0 :(得分:3)

AWK中的单个RE仅尝试匹配单行。您似乎想要一个范围模式,例如:/^Data Generated/, /^Full Speed.*$/

编辑:准确地获取您要求的格式相对很难。如果你不介意将它转向侧面,可以这么说,所以每一组都在一条线而不是一列,它变得相当简单:

/^Data/     { name = $4; }
/^Full/     { speeds[name] = speeds[name] " " $4; } 

END { 
    for (i in speeds)
        printf("%10s : %s\n", i, speeds[i]);
}

答案 1 :(得分:2)

试试这个:

awk -F: 'BEGIN {OFS="\t"; print "Turbine\047s" OFS "My"} /Turbine/ {tflag=1; mflag=0} /My/ {mflag=1; tflag=0} /Full speed/ {if (tflag) {T=$2; tflag=0}; if (mflag) { print T OFS OFS $2; mflag=0}}' inputfile

在不同的行上:

awk -F: 'BEGIN {OFS="\t"; print "Turbine\047s" OFS "My"}
        /Turbine/ {tflag=1; mflag=0}
        /My/ {mflag=1; tflag=0}
        /Full speed/ {
            if (tflag) {T=$2; tflag=0}; 
            if (mflag) { print T OFS OFS $2; mflag=0}}' inputfile

或稍微简单的版本:

awk -F: '/Turbine/, /^Full speed/ {if ($0 ~ /Full/) T=$2}
         /My/, /^Full speed/ {if ($0 ~ /Full/) print T, $2}'

答案 2 :(得分:0)

我使用Perl:

perl -ne '
    if (/(\S+) method/) {$method = $1}
    if (/Full speed : ([\d.]+)/) {push @{$speeds{$method}}, $1}
    END {
        @keys = keys %speeds;
        print join("\t", @keys), "\n";
        $max = 0;
        for $v (values %speeds) {
            $len = scalar @$v; 
            $max = $len if $len > $max;
        }
        for $i (0 .. $max-1) {
            for $k (@keys) {print $speeds{$k}[$i], "\t"}; 
            print "\n";
        }
    }
' speed.txt

输出

My      Turbine's
0.96    0.87
0.94    0.83