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Need to change format of number

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Top Forums Shell Programming and Scripting Need to change format of number
# 8  
Old 09-13-2009
In that case, the compulsive consumer that I am agrees.Smilie
# 9  
Old 09-14-2009
maybe you can try below perl

Code:
open FH,"<a.txt";
while(<FH>){
  chomp;
  my @tmp=split(",",$_);
  map {s/(?=(?:[0-9]{3})+(?:\.[0-9]*)?$)/,/g;} @tmp;
  print join ":", @tmp;
  print "\n";
}
close FH;

# 10  
Old 09-15-2009
Thanks for your replies
Tried with all the options provided,
Sorry for the typo in my question , but trying to generate a generic thousand format for all the numbers provided.
Also was hit with a development, to include -ve numbers as well.The function comma works good for positive values, but not able to get around the code to using the function for -ve numbers.

If i try to use the format option,
comma.sh >
Code:
LANG=en_US.UTF-8 nawk -F, -v OFS=":" '{
    for(i=1;i<=NF;i++) {
        l=length($i)
        p=index($i,".")
        d=p?l-p:0;
        $i=sprintf("%'"'"'*.*f",l,d,$i)
    }
    print
}' file.csv


$cat file.csv
-1979181218.70,-4016811628.77,-4177131974.40,-4177131974.40,-4177131974.40,-4177131974.40,-4177131974.40,-4177131974.40,-4177131974.40,-4177131974.40,-4177131974.40,-4177131974.40
1573820407.52,3110040327.95,3133242365.01,3133242365.01,3133242365.01,3133242365.01,3133242365.01,3133242365.01,3133242365.01,3133242365.01,3133242365.01,3133242365.01
-405360811.18,-906771300.82,-1043889609.39,-1043889609.39,-1043889609.39,-1043889609.39,-1043889609.39,-1043889609.39,-1043889609.39,-1043889609.39,-1043889609.39,-1043889609.39


$./comma2.sh
-1979181218.70:-4016811628.77:-4177131974.40:-4177131974.40:-4177131974.40:-4177131974.40:-4177131974.40:-4177131974.40:-4177131974.40:-4177131974.40:-4177131974.40:-4177131974.40
1573820407.52:3110040327.95:3133242365.01:3133242365.01:3133242365.01:3133242365.01:3133242365.01:3133242365.01:3133242365.01:3133242365.01:3133242365.01:3133242365.01
-405360811.18:-906771300.82:-1043889609.39:-1043889609.39:-1043889609.39:-1043889609.39:-1043889609.39:-1043889609.39:-1043889609.39:-1043889609.39:-1043889609.39:-1043889609.39

Not able to find any change in the format for the thousand separator, either for +ve or negative numbers.

Code:
locale -a
POSIX
common
en_US.UTF-8
C
iso_8859_1
en_AU
en_AU.ISO8859-1
en_NZ
en_NZ.ISO8859-1

Smilie. Think this is going to take some time.

---------- Post updated at 01:02 PM ---------- Previous update was at 12:43 PM ----------

A Simple logic hit me and it worked, Smilie
This will work for negative numbers as well.

Code:
function commas(n) {
 if ( n > -1000 && n < 1000 ) return n

 if(n > 1000 || n == 1000)
 {
     gsub(",","",n)
     point = index(n,".") - 1
     if (point < 0) point = length(n)
        while (point > 3) 
        {
             point -= 3
         n = substr(n,1,point) "," substr(n,point + 1)
             }
}

if( n < -1000 || n == -1000)
 {
        gsub(",","",n)
n=substr(n,2,length(n));
         point = index(n,".") - 1
         if (point < 0) point = length(n) ;
                while (point > 3)
                {
                 point -= 3
                 n = substr(n,1,point) "," substr(n,point + 1)
                 }
n= "-" n
 }
 return n
}

Thanks for your response Smilie
# 11  
Old 09-15-2009
It seems to work fine with the en_US.UTF-8 locale you also have on you box. Don't forget to temporarily force the locale to that en_US value at the run time of your script.

For a variable number of decimal (i.e. no decimal at all when not in input file):
Code:
$ LANG=en_US.UTF-8 awk -F, -v OFS=":" '{for(i=1;i<=NF;i++)$i=sprintf("%\047*.*f",length($i),index($i,".")?length($i)-index($i,"."):0,$i)}1' file
-1,979,181,218.70:-4,016,811,628.77:-1,979,181,218.70:-4,016,811,628.77:-4,177,131,974.40:-4,177,131,974.40:-4,177,131,974.40:-4,177,131,974.40
1,573,820,407.52:3,110,040,327.95:3,133,242,365.01:3,133,242,365.01:3,133,242,365.01:3,133,242,365.01
-405,360,811.18:-906,771,300.82:-1,043,889,609.39:-1,043,889,609.39:-1,043,889,609.39:-1,043,889,609.39

For a fixed nimber of decimal even when no decimal provided in input file:
Code:
$ LANG=en_US.UTF-8 awk -F, -v OFS=":" '{for(i=1;i<=NF;i++)$i=sprintf("%\047.2f",$i)}1' file
-1,979,181,218.70:-4,016,811,628.77-1,979,181,218.70:-4,016,811,628.77:-4,177,131,974.40:-4,177,131,974.40:-4,177,131,974.40:-4,177,131,974.40
1,573,820,407.52:3,110,040,327.95:3,133,242,365.01:3,133,242,365.01:3,133,242,365.01:3,133,242,365.01
-405,360,811.18:-906,771,300.82:-1,043,889,609.39:-1,043,889,609.39:-1,043,889,609.39:-1,043,889,609.39

If you don't like changing all the locale, you can restrict the change to LC_NUMERIC to the same effect.
Last edited by ripat; 09-15-2009 at 04:39 AM..
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