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Shell Programming and Scripting

first row data into variables

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# 1  
Old 08-14-2006
first row data into variables
I have a datafile having structure like
Code:
col1,col2,col3
col1,col2,col3,col4,col5
col1,col2,col3,col4,col5
.....

Can we take only first row of values from datafile and put into respective variable.

How col1 can be captured in a variable called v_col1 from unix script.

like first row(only)
Col1 data goes into v_col1
col2 data goes into v_col2
col3 data goes into v_col3.


thanks in advance
# 2  
Old 08-14-2006
The following script will capture the fields of first line into v_col1,v_col2 and v_col3.you can check with echo these variables.this script is wriiten with assumption that there are only 3 fields in first line and they are comma(,) seperated.

Code:
line1=`sed '1q' data_filename`
v_col1=`echo $line1 | awk -F"," '{print $1}'`
v_col2=`echo $line1 | awk -F"," '{print $2}'`
v_col3=`echo $line1 | awk -F"," '{print $3}'`
echo $v_col1
echo $v_col2 
echo $v_col3

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