perl解析字段正则表达式问题！多谢

bzh_516

有一行如下
WEBTRENDS_ID=222.132.54.238-1445777504.30501201::0BB4BC82CEDD04A01A54D670826;+__utmc=131097296;+uv_cookie_id=uv-4fb36324-2d01

我要解析出WEBTRENDS_ID的值222.132.54.238-1445777504.30501201::0BB4BC82CEDD04A01A54D670826和uv_cookie_id的值uv-4fb36324-2d01

我写的如下:
$WEBTRENDS_ID = (split /[ \s]WEBTRENDS_ID=([\s,]*)/, $datas[0])[1];
$uv_cookie_id = (split /[ \s]uv_cookie_id=([\s,]*)/, $datas[0])[1];

解析有问题，得不到值，请大家指点下，多谢！

RE_HASH

$> cat test.pl
$_ = "WEBTRENDS_ID=222.132.54.238-1445777504.30501201::0BB4BC82CEDD04A01A54D670826;+__utmc=131097296;+uv_cookie_id=uv-4fb36324-2d01";
($WEBTRENDS_ID, $uv_cookie_id) = /WEBTRENDS_ID=(.+?);.*?uv_cookie_id=(.+?)(;|$)/;
printf "\$WEBTRENDS_ID=$WEBTRENDS_ID, \$uv_cookie_id=$uv_cookie_id\n";


$> perl test.pl
$WEBTRENDS_ID=222.132.54.238-1445777504.30501201::0BB4BC82CEDD04A01A54D670826, $uv_cookie_id=uv-4fb36324-2d01

sunzhiguolu

1. perl -pe "s/\A[^=]*=|;.*=/\n/g" ur.txt

复制代码

sunzhiguolu

回复 4# 时时20160307
您能否说下 -F 选项中使用分隔符的限制, 有好多地方不明白, 谢谢!

   

jason680

回复 1# bzh_516

How about this way that easy to understand what you want

$ cat FILE
WEBTRENDS_ID=222.132.54.238-1445777504.30501201::0BB4BC82CEDD04A01A54D670826;+__utmc=131097296;+uv_cookie_id=uv-4fb36324-2d01

$ perl -lane '{
   $WEBTRENDS_ID=$1 if(m/WEBTRENDS_ID=([^;]+)/);
   $uv_cookie_id=$1 if(m/uv_cookie_id=([^;]+)/)
}
END{
  print $WEBTRENDS_ID;
  print $uv_cookie_id;
}' FILE
222.132.54.238-1445777504.30501201::0BB4BC82CEDD04A01A54D670826
uv-4fb36324-2d01


   

sunzhiguolu

回复 6# jason680

$ perl -lane '{
   $WEBTRENDS_ID=$1 if(m/WEBTRENDS_ID=([^;]+)/);
   $uv_cookie_id=$1 if(m/uv_cookie_id=([^;]+)/)
}
END{
  print $WEBTRENDS_ID;
  print $uv_cookie_id;
}' FILE

大神您好, 您的脚本中的花括号表示啥意思啊, 怎么还出了个 END {}. 没见过啊!
   

jason680

回复 7# sunzhiguolu

one line command:
perl -lane '{cmd1;...}END{cmd2;....}' FILE


as same as below:

while(<>){
  cmd1;
  ....
}
END{
  cmd2;
  ....
}   

Note: special block BEGIN, END,...
BTW, study Perl help/document first

sunzhiguolu

回复 8# jason680
感觉您的解释以及举例比帮助文档强大多了, 如果您哪天出书绝对属于精品系列了.

向您学习天天向上, 谢谢!
   

sunzhiguolu

回复 10# 时时20160307
-F 参数我还没怎么用到, 以后要多练习才行. 对了, 您使用的是什么系统?

   

sunzhiguolu

回复 12# 时时20160307
下一步我也准备系统学习下, Linux 操作系统.