在CSV文件末尾添加空列

我有一個.CSV文件（可以說名爲file.csv）帶有數字和字符串值。該字符串可能包含逗號，因此它們用雙引號括起來，如下面的格式所示。在CSV文件末尾添加空列

column1,column2,column3,column4,column5,column6,column7 
12,455,"string, with, quotes, and with, commas, in between",4432,6787,890,88 
4432,6787,"another, string, with, quotes, and, with, multiple, commaz, in between",890,88,12,455 
11,22,"simple, string",77,777,333,22

當我試圖在文件的末尾添加空列，使用下面的代碼

awk -F, '{NF=13}1' OFS="," file.csv > temp_file.csv

輸出不按我的要求。該代碼還計算文本限定符字段中的逗號，並用雙引號括起來。使用上述命令中的文件cat temp_file.csv的輸出是如下：

column1,column2,column3,column4,column5,column6,column7,,,,,, 
12,455,"string, with, quotes, and with, commas, in between",4432,6787,890,88, 
4432,6787,"another, string, with, quotes, and, with, multiple, commaz, in between",890,88 
11,22,"simple, string",77,777,333,22,,,,,

在哪裏，因爲我需要在該領域字段的總數使用爲13.在這個問題上的任何輸入要麼awk或sed非常感謝。

來源

2013-10-09 Dhruuv

您是否擁有對CSV生成的控制權？如果是這樣，你可以使用不同的字段分隔符（比如|）嗎？ – SheetJS

文件末尾有很多空格。 – Jotne

@Nirk我不生成CSV。我從其中一位顧客那裏得到它。 – Dhruuv

awk -F, '{sub(/ *$/,"");$0=$0 ","}1' OFS=, 
column1,column2,column3,column4,column5,column6,column7, 
12,455,"string, with, quotes, and with, commas, in between",4432,6787,890,88, 
4432,6787,"another, string, with, quotes, and, with, multiple, commaz, in between",890,88,12,455, 
11,22,"simple, string",77,777,333,22,

這將刪除尾隨空格並在末尾添加一個字段。

來源

2013-10-09 04:49:03 Jotne

-1

如果輸入總是有7場張貼那麼你挑：

awk '{print $0 ",,,,,,"}' file 
sed 's/$/,,,,,,/' file

或刪除尾隨空格：

awk '{sub(/ *$/,",,,,,,")}1' file 
sed 's/ *$/,,,,,,/' file

如果你的輸入文件可以有本領域的不同的數字，但仍顯示標題行：

awk -F, 'NR==1{flds=sprintf("%*s",13-NF,""); gsub(/ /,FS,flds)} {sub(/ *$/,flds)} 1' file 
column1,column2,column3,column4,column5,column6,column7,,,,,, 
12,455,"string, with, quotes, and with, commas, in between",4432,6787,890,88,,,,,, 
4432,6787,"another, string, with, quotes, and, with, multiple, commaz, in between",890,88,12,455,,,,,, 
11,22,"simple, string",77,777,333,22,,,,,,

來源

2013-10-09 10:51:59

在CSV文件末尾添加空列

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