Sort data by date and then search by column


 
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# 1  
Old 05-16-2013
Sort data by date and then search by column

Hi,
I have a file where data is pipe separated.First i want to sort the file content by date . Then i want to pick up the records based on the first column which should be unique and not have duplicates.

NYSE|yyyrrrddd|toronto|isin|ticker|2013-05-15
UKS|yyyrrrddd|toronto|isin|ticker|2013-05-14
BSE|yyyrrrddd|toronto|isin|ticker|2013-05-13
HKS|yyyrrrddd|toronto|isin|ticker|2013-05-14
TSX|yyyrrrddd|toronto|isin|ticker|2013-05-16
NYSE|yyyrrrddd|toronto|isin|ticker|2013-05-15
BSE|yyyrrrddd|toronto|isin|ticker|2013-05-15

First i would like to sort by date and get the latest ones. Secondly there should be no duplicates and hence my output should be like this :

TSX|yyyrrrddd|toronto|isin|ticker|2013-05-16
NYSE|yyyrrrddd|toronto|isin|ticker|2013-05-15
BSE|yyyrrrddd|toronto|isin|ticker|2013-05-15
UKS|yyyrrrddd|toronto|isin|ticker|2013-05-14
UKS|yyyrrrddd|toronto|isin|ticker|2013-05-14

Any help with the relevant script is requested.
# 2  
Old 05-17-2013
You can sort the file to get the order you want and remove duplicates:

Code:
$ cat t
NYSE|yyyrrrddd|toronto|isin|ticker|2013-05-15
UKS|yyyrrrddd|toronto|isin|ticker|2013-05-14
BSE|yyyrrrddd|toronto|isin|ticker|2013-05-13
HKS|yyyrrrddd|toronto|isin|ticker|2013-05-14
TSX|yyyrrrddd|toronto|isin|ticker|2013-05-16
NYSE|yyyrrrddd|toronto|isin|ticker|2013-05-15
BSE|yyyrrrddd|toronto|isin|ticker|2013-05-15

$ sort -u -t'|' -k6,6r -k1,1 t
TSX|yyyrrrddd|toronto|isin|ticker|2013-05-16
BSE|yyyrrrddd|toronto|isin|ticker|2013-05-15
NYSE|yyyrrrddd|toronto|isin|ticker|2013-05-15
HKS|yyyrrrddd|toronto|isin|ticker|2013-05-14
UKS|yyyrrrddd|toronto|isin|ticker|2013-05-14
BSE|yyyrrrddd|toronto|isin|ticker|2013-05-13


What else do you want to do?
# 3  
Old 05-17-2013
I have kept the command you mentioned inside a .sh file and upon execution i got the below 2 message:
Code:
cat: cannot open t
sort: can't stat t: No such file or directory

1) below is my .sh file content where abc.psv is file which has the | data
Code:
Code:
cat t /common/PDS/abc.psv
sort -u -t'|' -k6,6r -k1,1 t /common/PDS/abc.psv

2) the abc.psv file is kept in the path /common/PDS/

Last edited by Franklin52; 05-18-2013 at 10:09 AM.. Reason: Please use code tags
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