我有像这样的日志文件...
2009-12-18T08:25:22.983Z 1 174 dns:0-apr-credit-cards-uk.pedez.co.uk P http://0-apr-credit-cards-uk.pedez.co.uk/ text/dns #170 20091218082522021+89 sha1:AIDBQOKOYI7OPLVSWEBTIAFVV7SRMLMF - -
2009-12-18T08:25:22.984Z 1 5 dns:0-60racing.co.uk P http://0-60racing.co.uk/ text/dns #116 20091218082522037+52 sha1:WMII7OOKYQ42G6XPITMHJSMLQFLGCGMG - -
2009-12-18T08:25:23.066Z 1 79 dns:0-addiction.metapress.com.wam.leeds.ac.uk P http://0-addiction.metapress.com.wam.leeds.ac.uk/ text/dns #042 20091218082522076+20 sha1:NSUQN6TBIECAP5VG6TZJ5AVY34ANIC7R - -
...plus millions of other records
我需要将这些文件转换为csv格式...
"2009-12-18T08:25:22.983Z","1","174","dns:0-apr-credit-cards-uk.pedez.co.uk","P","http://0-apr-credit-cards-uk.pedez.co.uk/","text/dns","#170","20091218082522021+89","sha1:AIDBQOKOYI7OPLVSWEBTIAFVV7SRMLMF","-","-"
"2009-12-18T08:25:22.984Z","1","5","dns:0-60racing.co.uk","P","http://0-60racing.co.uk/","text/dns","#116","20091218082522037+52","sha1:WMII7OOKYQ42G6XPITMHJSMLQFLGCGMG","-","-"
"2009-12-18T08:25:23.066Z","1","79","dns:0-addiction.metapress.com.wam.leeds.ac.uk","P","http://0-addiction.metapress.com.wam.leeds.ac.uk/","text/dns","#042","20091218082522076+20","sha1:NSUQN6TBIECAP5VG6TZJ5AVY34ANIC7R","-","-"
字段分隔符可以是单个或多个空格字符,同时具有固定宽度和可变宽度字段。这往往会使我找到的大多数CSV解析器感到困惑。
最终,我想将这些文件bcp到SQL Server中,但您只能指定单个字符作为字段分隔符(即“ ”),这会破坏固定长度字段。
目前为止 - 我正在使用PowerShell
gc -ReadCount 10 -TotalCount 200 .\crawl_sample.log | foreach { ([regex]'([\S]*)\s+').matches($_) } | foreach {$_.Groups[1].Value}
这将返回一个字段流:
2009-12-18T08:25:22.983Z
1
74
dns:0-apr-credit-cards-uk.pedez.co.uk
P
http://0-apr-credit-cards-uk.pedez.co.uk/
text/dns
#170
20091218082522021+89
sha1:AIDBQOKOYI7OPLVSWEBTIAFVV7SRMLMF
-
-
2009-12-18T08:25:22.984Z
1
55
dns:0-60racing.co.uk
P
http://0-60racing.co.uk/
text/dns
#116
20091218082522037+52
sha1:WMII7OOKYQ42G6XPITMHJSMLQFLGCGMG
-
但是我该如何将输出转换为CSV格式?