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Add edited numeric strings in awk

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Top Forums Shell Programming and Scripting Add edited numeric strings in awk
# 8  
Old 11-08-2013
Code:
printf "%s\n%s\n" 10,250.00 20,103.15 | awk '{var=$1;gsub(/,/,x,var);print var}'
printf "%s\n%s\n" 10,250.00 20,103.15 | awk '{gsub(/,/,x,$1);print $1}'

both gave same result, sir.
Thank you
Last edited by Franklin52; 11-08-2013 at 01:12 PM.. Reason: Please use code tags
# 9  
Old 11-08-2013
Quote:
Originally Posted by paresh n doshi
printf "%s\n%s\n" 10,250.00 20,103.15 | awk '{var=$1;gsub(/,/,x,var);print var}'
printf "%s\n%s\n" 10,250.00 20,103.15 | awk '{gsub(/,/,x,$1);print $1}'
both gave same result, sir.
Thank you

In first command var=$1 and then gsub is used it means $1 will remain unchanged, in second command if $1 contains , then its removed, and $1 itself will be modified

look at the difference copy of $1 is assigned to variable var and then it's modified

Code:
$ printf "%s\n%s\n" 10,250.00 20,103.15 | awk '{var=$1;gsub(/,/,x,var);print var,$1}'
10250.00 10,250.00
20103.15 20,103.15

Here $1 itself is modified.
Code:
$ printf "%s\n%s\n" 10,250.00 20,103.15 | awk '{gsub(/,/,x,$1);print $1}'
10250.00
20103.15

This User Gave Thanks to Akshay Hegde For This Post:
paresh n doshi
# 10  
Old 11-08-2013
Note that although you need to remove the commas from your input before adding the values to your total, awk is happy to print your results with or without thousands separators. As an example, if you use the following code:
Code:
awk -v fmt="%'16.2f\t%16.2f\n" '
{       gsub(/,/, "")
        sum += $1
        printf(fmt, $1, $1)
}
END {   printf("----------------\t----------------\n")
        printf(fmt, sum, sum)
}' input

and input contains:
Code:
10,250.00
20,103.15
1,234,567,890.12499
2,333,444,555.1359
1234.3
5555555.55
9876

the output produced is:
Code:
       10,250.00	        10250.00
       20,103.15	        20103.15
1,234,567,890.12	   1234567890.12
2,333,444,555.14	   2333444555.14
        1,234.30	         1234.30
    5,555,555.55	      5555555.55
        9,876.00	         9876.00
----------------	----------------
3,573,609,464.26	   3573609464.26

If you want to try this on a Solaris/SunOS system, change awk at the start of this script to /usr/xpg4/bin/awk, /usr/xpg6/bin/awk, or nawk.
This User Gave Thanks to Don Cragun For This Post:
paresh n doshi
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