Question

我有80列和“ ^ A”定界符的csv文件。我想从中删除几列，可以是1,2,20,31,45,56,77,78,79,80或需要的任何列。

例如：我正在获取一个15列的CSV文件发件人：

2018^A04 14:14:46^A01^AJHFM^A2^ACard^Aacc^A11^A0^AVZ^Aapp^A2^AGold^ACUST^ABB  
2018^A04 14:14:46^A01^AJHFM^A2^ACard^Aacc^A11^A0^AVZ^Aapp^A2^AGold^ACUST^ABB  
2018^A04 14:14:46^A01^AJHFM^A2^ACard^Aacc^A11^A0^AVZ^Aapp^A2^AGold^ACUST^ABB  
2018^A04 14:14:46^A01^AJHFM^A2^ACard^Aacc^A11^A0^AVZ^Aapp^A2^AGold^ACUST^ABB  
2018^A04 14:14:46^A01^AJHFM^A2^ACard^Aacc^A11^A0^AVZ^Aapp^A2^AGold^ACUST^ABB  
2018^A04 14:14:46^A01^AJHFM^A2^ACard^Aacc^A11^A0^AVZ^Aapp^A2^AGold^ACUST^ABB  
2018^A04 14:14:46^A01^AJHFM^A2^ACard^Aacc^A11^A0^AVZ^Aapp^A2^AGold^ACUST^ABB  
2018^A04 14:14:46^A01^AJHFM^A2^ACard^Aacc^A11^A0^AVZ^Aapp^A2^AGold^ACUST^ABB  
2018^A04 14:14:46^A01^AJHFM^A2^ACard^Aacc^A11^A0^AVZ^Aapp^A2^AGold^ACUST^ABB  
2018^A04 14:14:46^A01^AJHFM^A2^ACard^Aacc^A11^A0^AVZ^Aapp^A2^AGold^ACUST^ABB

收件人：

我删除了列2,5,7,9,13

2018^A01^AJHFM^ACard^A11^AVZ^Aapp^A2^ACUST^ABB  
2018^A01^AJHFM^ACard^A11^AVZ^Aapp^A2^ACUST^ABB  
2018^A01^AJHFM^ACard^A11^AVZ^Aapp^A2^ACUST^ABB  
2018^A01^AJHFM^ACard^A11^AVZ^Aapp^A2^ACUST^ABB  
2018^A01^AJHFM^ACard^A11^AVZ^Aapp^A2^ACUST^ABB  
2018^A01^AJHFM^ACard^A11^AVZ^Aapp^A2^ACUST^ABB  
2018^A01^AJHFM^ACard^A11^AVZ^Aapp^A2^ACUST^ABB  
2018^A01^AJHFM^ACard^A11^AVZ^Aapp^A2^ACUST^ABB  
2018^A01^AJHFM^ACard^A11^AVZ^Aapp^A2^ACUST^ABB  
2018^A01^AJHFM^ACard^A11^AVZ^Aapp^A2^ACUST^ABB

它使用awk可以工作，但是在已删除的列中留有空白。

awk 'BEGIN { FS="^A"} {$1=$2="";gsub(",+",",",$0)}1' filename

Answer 1

分配给字段时，awk将使用 output 字段分隔符重写该行。您需要设置它，因为默认情况下它是一个空格。这样做：

BEGIN { FS = OFS = "^A" }

在UNIX中的.csv文件中删除多列

1 个答案: