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Shell Programming and Scripting
Search/grep on row and column wise
Post 302947716 by calredd on Saturday 20th of June 2015 11:45:19 PM
06-21-2015
Quote:
None of your examples match your sample data.
You don't have a field named CITY; you have a field named CITY followed by eight spaces. If you try to look for a value in the CITY field, it should fail because there is no CItY field.
With a comma separated data file, you don't have a city name of CHICAGO; you have a city name of CHICAGO followed by three spaces, and you don't have a city name of NEWARK; you have a city name of NEWARK followed by four spaces.
And, if someone entered the keys, CHICAGO followed by three spaces and STATE they should get IL followed by 7 spaces; not just IL.
And, if you have columns in the order CITY,STATE,COUNTY,STATE (which you said is possible) and the user gives keys NEW_YORK and STATE are you supposed to return the value in column 2, column 4, or both???
How are the keys supplied to your script?
What operating system and shell are you using?
What have you tried so far?
Is this a homework assignment?
You don't have a field named CITY; you have a field named CITY followed by eight spaces. If you try to look for a value in the CITY field, it should fail because there is no CItY field.
With a comma separated data file, you don't have a city name of CHICAGO; you have a city name of CHICAGO followed by three spaces, and you don't have a city name of NEWARK; you have a city name of NEWARK followed by four spaces.
And, if someone entered the keys, CHICAGO followed by three spaces and STATE they should get IL followed by 7 spaces; not just IL.
And, if you have columns in the order CITY,STATE,COUNTY,STATE (which you said is possible) and the user gives keys NEW_YORK and STATE are you supposed to return the value in column 2, column 4, or both???
How are the keys supplied to your script?
What operating system and shell are you using?
What have you tried so far?
Is this a homework assignment?
Sorry for the confusion but there are no space in the data. I only put spaces to make it easier to understand. Here's how the data will appear:
Code:
CITY,COUNTY,STATE,COUNTRY NEW_YORK,NYC,NY,USA NEWARK,ESSEX,NJ,USA CHICAGO,COOK,IL,USA SEATTLE,MINER,WA,USA
Ex: NEWARK & STATE, SEATTLE & COUNTRY, NEWARK & COUNTY
Q. What operating system and shell are you using? LINUX and ksh
So far, I have tried doing a egrep on both CITY and the value from the first row (ex: NEW_YORK or CHICAGO) to get two rows. But after that, I need to narrow down the value to a specific column name which can be either COUNTY or STATE or COUNTRY and here's where I am struck.
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No, this is not a homework but rather I need to mine a metadata file to narrow down the value to a specific row and column.
Hope my explantion helps.
Last edited by Don Cragun; 06-21-2015 at 01:16 AM.. Reason: Add CODE tags, again.
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