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Help to move leading negative sign to trailing position

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# 1  
Old 07-07-2011
Help to move leading negative sign to trailing position
Hi All,

I am having a file which contains negative numbers, wht i am doing is re-formattting the file(moving few columns and add few hard codings between), while reformatting i would want the negative numbers to have the sign as trailing rather than leading.

Existing
Code:
-2400.00
34
0.00
-987.00
-92.56

Required
Code:
2400.00-
34
0.00
987.00-
92.56-

FYI am using awk on every line to reformat the line to create a new format
Code:
cat $FILENAME |grep ^3 | while read line
do
  echo "$line" | nawk ' BEGIN {FS=","}  {print("5",$1,$28,"$27",$26)}' >> New_file
done

Last edited by Franklin52; 07-07-2011 at 06:50 AM.. Reason: Please use code tags for code and data samples, thank you
# 2  
Old 07-07-2011
Code:
 
$ nawk '{ if(index($0,"-") > 0){print substr($0,2,length($0))"-"} else {print $0}}' test
2400.00-
34
0.00
987.00-
92.56-

$ cat test
-2400.00
34
0.00
-987.00
-92.56

# 3  
Old 07-07-2011
Alternate awk..
Code:
awk -F'-' '{print /-/?$2"-":$0}' inputfile

# 4  
Old 07-07-2011
Code:
 
cat $FILENAME |grep ^3 | while read line
do
echo "$line" | nawk ' BEGIN {FS=","} {print("5",$1,$28,"$27",$26)}' >> New_file
done

use this... ( unnecessary of cat, while, echo )

Code:
nawk ' /^3/ BEGIN {FS=","} {print("5",$1,$28,"$27",$26)}' $FILENAME >> New_file

# 5  
Old 07-07-2011
Thank you ITKAMARAJ..
I am actually going to use printf to use certain formatting(like padding with zero etc)

Code:
nawk '{ if(index($0,"-") > 0){print substr($0,2,length($0))"-"} else {print $0}}' test

the above worked perfectly fine ... in that case i will have to first use this to the file(to conver the column with trailing sign and then use my other formatting ? or can i include the above to this statement
Code:
nawk ' /^3/ BEGIN {FS=","} {print("5",$1,$28,"$27",$26)}' $FILENAME

?
Last edited by Franklin52; 07-07-2011 at 07:26 AM.. Reason: Please use code tags for code and data samples, thank you
# 6  
Old 07-07-2011
cat 9temp
Code:
-2400.00
34
0.00
-987.00
-92.56


With the help of sed:
Code:
cat 9temp | sed 's/^-\(.*\)/\1\-/'
2400.00-
34
0.00
987.00-
92.56-

Last edited by Franklin52; 07-07-2011 at 07:23 AM.. Reason: Please use code tags for code and data samples, thank you
# 7  
Old 07-07-2011
Quote:
Originally Posted by itkamaraj
Code:
 
$ nawk '{ if(index($0,"-") > 0){print substr($0,2,length($0))"-"} else {print $0}}' test
2400.00-
34
0.00
987.00-
92.56-
 
$ cat test
-2400.00
34
0.00
-987.00
-92.56

if the above column is other than 1st ..like if the column containg the value is 13th column ?
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