读取行时，awk $行有多个分隔符(While read line, awk $line with multiple delimiters)

 我正在尝试这个的一个小变体，除了我告诉awk基于第5个字段要拆分的文件的分隔符可以是冒号“：”或制表符\ t。 我单独执行awk -F '[:\t]'部分，它确实打印了正确的$ 5字段。 
 
 但是，当我尝试将其合并到更大的命令时，它返回以下错误： 
 
                                                             print > f
awk: cmd. line:9:                                            ^ syntax error
 
 这是代码： 
 
awk -F '[:\t]' '    # read the list of numbers in Tile_Number_List
    FNR == NR {
        num[$1]
        next
    }

    # process each line of the .BAM file
    # any lines with an "unknown" $5 will be ignored
    $5 in num {
        f = "Alignments_" $5 ".sam"        print > f
    } ' Tile_Number_List.txt little.sam
 
 为什么不能使用-F选项？ 

I am trying a small variation of this, except I telling awk that the delimiter of the file to be split based on the 5th field can either be a colon ":" or a tab \t. I do the awk -F '[:\t]' part alone, it does indeed print the right $5 field.
 
However, when I try to incorporate this into the bigger command, it returns the following error:
 
                                                             print > f
awk: cmd. line:9:                                            ^ syntax error
 
This is the code:
 
awk -F '[:\t]' '    # read the list of numbers in Tile_Number_List
    FNR == NR {
        num[$1]
        next
    }

    # process each line of the .BAM file
    # any lines with an "unknown" $5 will be ignored
    $5 in num {
        f = "Alignments_" $5 ".sam"        print > f
    } ' Tile_Number_List.txt little.sam
 
Why won't it work with the -F option? 

原文：https://stackoverflow.com/questions/16404666