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How to find single file of any task_id?

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# 1  
Old 01-31-2015
How to find single file of any task_id?
Hi Guys,


I have many files names of single task_id, now we have to find out only file of every task_id, my files is following :-


Code:
sms_task_id_01-12345.csv
sms_task_id_01-12345.csv
sms_task_id_01-13345.csv
sms_task_id_01-14345.csv
sms_task_id_01-14345.csv
sms_task_id_02-12345.csv
sms_task_id_02-13345.csv
sms_task_id_02-14345.csv
sms_task_id_03-12345.csv
sms_task_id_03-13345.csv
sms_task_id_03-14345.csv

Output should be single files from each task_id like below

Code:
sms_task_id_01-12345.csv
sms_task_id_02-13345.csv
sms_task_id_03-13345.csv


where task_id is like (task_id_01, task_id_02, task_id_03)

How to find single file of any task_id
Last edited by Scrutinizer; 01-31-2015 at 04:35 AM.. Reason: code tags, removed quote tags
# 2  
Old 01-31-2015
What's missing is why / on what basis you want to select a file for a task id. For example for sms_task_id_01 it is the forst one, for sms_task_id_02 and 03 it is the middle one. In aother words, what is the logic?
This User Gave Thanks to Scrutinizer For This Post:
aaditya321
# 3  
Old 01-31-2015
I need any one files of task_id_01 like wise task_id_02, task_id_03

Quote:
Originally Posted by Scrutinizer
What's missing is why / on what basis you want to select a file for a task id. For example for sms_task_id_01 it is the forst one, for sms_task_id_02 and 03 it is the middle one. In aother words, what is the logic?
# 4  
Old 01-31-2015
Ok any filename ? Are they in a file? How about just picking the first one?
Code:
awk -F- '!A[$1]++' file

Output:
Code:
sms_task_id_01-12345.csv
sms_task_id_02-12345.csv
sms_task_id_03-12345.csv

This User Gave Thanks to Scrutinizer For This Post:
aaditya321
# 5  
Old 01-31-2015
What is meaning of file here
Quote:
awk -F- '!A[$1]++' file
we are using here many files but you mention only word 'file' please explain it.
# 6  
Old 01-31-2015
"file" would be the name of the file that contains the "sms_task_id" file names that you specified. It is an assumption of what your input looks like, because that wasn't specified in the posts #1 and #3..
Last edited by Scrutinizer; 01-31-2015 at 06:15 AM..
# 7  
Old 01-31-2015
Hello aaditya321,

I will suggest you to go through forum's search option, this is very commonly asked question, if you feel the difficulty please check with man awk, if you feel you still need to understand it, we can help you but please do let us know what you have understood, so that it will help you and us to learn which is aim of this forum.

Thanks,
R. Singh
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