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I have a .csv file with some addresses and admin codes. I want to sort it on the final column (UK postcode). I'm trying to reorder the file by moving the final column to the beginning and then using sort, but I'm running into an odd sort of issue. Here's some of the data:

$ head T201311ADDR\ BNFT.CSV 
201311,A81001,THE DENSHAM SURGERY                     ,THE HEALTH CENTRE        ,LAWSON STREET            ,STOCKTON                 ,CLEVELAND                ,TS18 1HU
201311,A81002,QUEENS PARK MEDICAL CENTRE              ,QUEENS PARK MEDICAL CTR  ,FARRER STREET            ,STOCKTON ON TEES         ,CLEVELAND                ,TS18 2AW
201311,A81003,THE GALLAGHER PRACTICE                  ,THE HEALTH CENTRE        ,VICTORIA ROAD            ,HARTLEPOOL               ,CLEVELAND                ,TS26 8DB
201311,A81004,WOODLANDS ROAD SURGERY                  ,6 WOODLANDS ROAD         ,                         ,MIDDLESBROUGH            ,CLEVELAND                ,TS1 3BE 
201311,A81005,SPRINGWOOD SURGERY                      ,SPRINGWOOD SURGERY       ,RECTORY LANE             ,GUISBOROUGH              ,                         ,TS14 7DJ

I can get the final column:

$ head T201311ADDR\ BNFT.CSV | awk -F ',' 'BEGIN {OFS = ","} {print $NF}' 
TS18 1HU
TS18 2AW
TS26 8DB
TS1 3BE 
TS14 7DJ

But if I print anything else on the line, it overwrites it.

$ head T201311ADDR\ BNFT.CSV | awk -F ',' 'BEGIN {OFS = ","} {print $NF, $2}' 
,A81001U
,A81002W
,A81003B
,A81004 
,A81005J
,A81006T
,A81007W
,A81008 
,A81009 
,A81011W

Clearly not useful. I've tried using a test file that I just edited and don't see this behaviour, so it has something to do with this particular file. Any suggestions? Is there a known issue with some newline characters? I'm working on a Mac, and I suspect the file comes from a PC. It's NHS data from the UK.

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1 回答 1

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您的文件中可能有一些奇怪的（Windowsy）字符，试试这个：

cat -vet yourfile

并寻找 ^M 这是回车出现的方式。这是一个例子：

cat -vet file
I came from Windows-world ^M$
so did I ^M$

或者，如果您只有或更喜欢sed：

sed -ne "l"  file
I came from Windows-world \r$
so did I \r$

您可以使用 删除任何奇怪的字符tr。要删除回车符 (\r)，请执行以下操作：

tr -d '\r' < inputfile > outputfile
于 2014-03-28T10:01:35.110 回答