MSpec在Appharbor上(MSpec on Appharbor)

 更新 ：第二个想法，你可以使用单个输入字段分隔符regex（通过选项-F指定，转换为变量FS ）： 
 
awk -F ',\\[?|\\]' '{ print $2 ,$3, $6 ,$7 }' removed-apply.log.2016-02-19
 
 注意需要加倍 \ instances以在正则表达式的上下文中生成跟随它们的字符作为文字 。 例如， \\[转换为文字\[通过awk的初始字符串解析， 正则表达式解析然后看作\[ ，导致解释为文字 [ 。 简而言之： string ,\\[?|\\]产生正则表达式 ,\[?|\] 。 
 
 
 原始答案 （已接受）： 
 
 您的输入仍然明确是面向行的 ，因此没有理由更改输入记录分隔符RS 。 
 
 而是分两步解析每一行： 
 
 
 
 使用FS 最初将输入分为2个字段：在[ ，之前[...]之间。 
  
 
   
 注意：下面使用的奇怪的正则表达式， [][] ，是一个包含2个文字字符的字符集（ [...] ， ]和[ ; 它在概念上等同于\[|\] 。 
 
  
 
 
 然后，使用split()将每个结果字段拆分为存储在数组中的子字段： 
 
 
awk '
  BEGIN { FS="[][]" } # split into $1 (before "[") and $2 (between "[...]")
  { 
    split($1, fa1, ",") # split $1 into subfields by "," and store in array fa1
    split($2, fa2, ",") # split $2 into subfields by "," and store in array fa2
    # Output fields of interest
    print fa1[2], fa1[3], fa2[1], fa2[2]
  }' removed-apply.log.2016-02-19
 

Update: On second thought, you can get away with a single input field-separator regex (specified via option -F, which translates to variable FS):
 
awk -F ',\\[?|\\]' '{ print $2 ,$3, $6 ,$7 }' removed-apply.log.2016-02-19
 
Note the need to double \ instances to produce the character following them as a literal in the context of a regex. E.g, \\[ is turned into literal \[ by awk's initial string parsing, which regex parsing then sees as \[, resulting in interpretation as literal [. In short: string ,\\[?|\\] results in regex ,\[?|\].
 
 
Original answer (as accepted):
 
Your input is still clearly line-oriented, so there's no reason to change RS, the input-record separator.
 
Instead, parse each line in two steps:
 
 
 
Use FS to initially break the input into 2 fields: before [, and between [...]. 
  
 
   
Note: The strange-looking regular expression used below, [][], is a character set( [...]) containing 2 literal characters, ] and [; it is conceptually equivalent to \[|\].
 
  
 
 
Then, use split() to split each resulting field by , into subfields stored in arrays:
 
 
awk '
  BEGIN { FS="[][]" } # split into $1 (before "[") and $2 (between "[...]")
  { 
    split($1, fa1, ",") # split $1 into subfields by "," and store in array fa1
    split($2, fa2, ",") # split $2 into subfields by "," and store in array fa2
    # Output fields of interest
    print fa1[2], fa1[3], fa2[1], fa2[2]
  }' removed-apply.log.2016-02-19