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awk print specific columns one row at a time

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# 1  
Old 08-02-2011
Error awk print specific columns one row at a time
Hello,

I have the following piece of code:


roleName
=`cat $inputFile | awk -F';' '{ print $1 }'`

roleDescription


=`cat $inputFile | awk -F';' '{ print $2 }'`

roleAuthProfile


=`cat $inputFile | awk -F';' '{ print $3 }'`

mappedUserID


=`cat $inputFile | awk -F';' '{ print $4 }'`

mapType


=`cat $inputFile | awk -F';' '{ print $5 }'`
userID=`cat $inputFile | awk -F';' '{ print $6 }'`

What I'm trying to do is extract input from specific columns for a script. I'm using the ";" as my delimeter.

The problem I'm having is that even though I'm putting this code in a loop, I'm getting the value of the whole column as my variable rather than the string within the delimiter.


(for properties in $inputfile
do: the piece of code above
done)

I want to get one line at a time from the specified column.

Does anyone know what I could be doing wrong?


# 2  
Old 08-02-2011
That's a useless use of cat, you don't need to run cat all the time.

What does your input data look like and what data from it do you want? There's probably better ways than running awk in backticks all the time too, like
Code:
while IFS=";" read roleName roleDescription roleAuthProfile mappedUserID mapType userID G
do
        echo "column 1 is ${roleName}"
        ...
done < infile

This is more straightforward and hundreds of times faster.
This User Gave Thanks to Corona688 For This Post:
pr0tocoldan
# 3  
Old 08-02-2011
Study this example:
Code:
% cat >INPUTFILE
x;y;z
% IFS=';' read a b c <INPUTFILE
% echo $a $b $c
x y z

# 4  
Old 08-02-2011
Oops.
# 5  
Old 08-02-2011
Input Data Format
Role_1_Name_Example; Role Description 1; DB Auth Profile 1; user1; 1; user1@DBG.ADS.DB.COM
Role_2_Name_Example; Role Description 2; DB Auth Profile 2; user2; 999; user2@DBG.ADS.DB.COM
Role_3_Name_Example; Role Description 3; DB Auth Profile 3; user3; 999; user3@DBG.ADS.DB.COM
Role_4_Name_Example; Role Description 4; DB Auth Profile 4; user4; 1; user4@DBG.ADS.DB.COM
Role_5_Name_Example; Role Description 5; DB Auth Profile 5; user5; 1; user5@DBG.ADS.DB.COM
# 6  
Old 08-02-2011
Quote:
Originally Posted by pr0tocoldan
Role_1_Name_Example; Role Description 1; DB Auth Profile 1; user1; 1; user1@DBG.ADS.DB.COM
Role_2_Name_Example; Role Description 2; DB Auth Profile 2; user2; 999; user2@DBG.ADS.DB.COM
Role_3_Name_Example; Role Description 3; DB Auth Profile 3; user3; 999; user3@DBG.ADS.DB.COM
Role_4_Name_Example; Role Description 4; DB Auth Profile 4; user4; 1; user4@DBG.ADS.DB.COM
Role_5_Name_Example; Role Description 5; DB Auth Profile 5; user5; 1; user5@DBG.ADS.DB.COM
Great, now please answer the other half of my question:
Quote:
Originally Posted by Corona688
...and what data from it do you want?
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