我正在尝试创建一个脚本来获取特定单词“ statusDescription”之后的所有Apache响应,但是我遇到的问题是,某些行的输出重复了,因为匹配的单词或响应可能在同一行写了2次

日志“ 1行”的样本:

GET/en?status=1&newMainBalance=5486&serviceAmount=700&ExternalTrxId=asdf&PgTrxId=tfpsadf&amount=0&statusDescription=Failed&customerCode=1.1&newDedicatedBalance=0&secureHash=56a7sdyf&paidAmount=1000&responseMsg=%a1%a1%A1(PG_ID)&language=enHTTP/1.1"200186243**1/1210669**1"-""-""-""https://example.com.eg?statusDescription=Failed&externalTrxId=123&status=203&secureHash=asdf&pgTrxId=asdf

我尝试使用以下命令获取“ statusDescription”和“&”之间的任何匹配项

cat test.txt  | perl -nle'print $1 while /statusDescription(.*?)\&/g'
cat test.txt  | perl -nle'print $1 while /statusDescription(.*?)\&/g'


输出:


  =失败
  =失败


我除了结果是1行只喜欢


  =失败


要么


  =失败=失败

最佳答案

您使用的-l选项没有值。引用perlrun


  如果省略octnum,则将$\设置为$/的当前值


默认情况下为\n。因此,每张印刷品都会自动添加\n

$  echo 'Match=once& should only Match=twice& once' | perl -nle 'print "MATCH ->$1<-" while /Match(.*?)&/g'
MATCH ->=once<-
MATCH ->=twice<-

# the same without -l
$ echo 'Match=once& should only Match=twice& once' | perl -ne 'print "MATCH ->$1<-" while /Match(.*?)&/g'
MATCH ->=once<-MATCH ->=twice<-

# if your post-processing requires matches from different lines to appear
# on separate lines then append a conditional print "\n" at the end
$ echo 'Match=once& should only Match=twice& once' | perl -ne 'print "MATCH ->$1<-" while /Match(.*?)&/g; print "\n" if $1'
MATCH ->=once<-MATCH ->=twice<-
$ echo 'nomatch=once& should only nomatch=twice& once' | perl -ne 'print "MATCH ->$1<-" while /Match(.*?)&/g; print "\n" if defined $1'
$


对于$/(输入记录分隔符)和$\(输出记录分隔符),另请参见perlvar

07-28 11:58