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# 1  
Old 04-28-2012
Need help on AWK
hi I have a delimited file 'file1' with 2 columns invoice number and code.


Code:
cat file1
8734111121,JFK
23112        ,LHR
45611110   ,ABH
780           ,B


We need to find the last 8 characters of column1 and put it in the main file.If the number of characters is less than 8,we need to add '0' in start of column 1 so as to make it equal to 8 characters.The output file should look like :
Code:
34111121JFK
00023112LHR
45611110ABH
00000780BCA

The column1 in 'file1' can be of any length.
Please give some solution.

Moderator's Comments:
Mod Comment Please click this link: How to use [code][/code] tags
Last edited by Scrutinizer; 04-28-2012 at 04:23 AM.. Reason: code tags
# 2  
Old 04-28-2012
Hi, try:
Code:
awk -F, '{len=length($1+0); printf "%08d%s\n",(l>8?substr($1,len-8+1,8):$1),$2}' infile

# 3  
Old 04-30-2012
Quote:
Originally Posted by Scrutinizer
Hi, try:
Code:
awk -F, '{len=length($1+0); printf "%08d%s\n",(l>8?substr($1,len-8+1,8):$1),$2}' infile


hi ,

I tried to use the above code for my file,but it did now work.Below is the code i used and the contents of 'myfile' :

Code:
Code:
nawk -F, '{len=length($1+0); printf "%08d%s\n" ,$1,(1>8?substr($2,len-8+1,8):$2),$3}' myfile > newfile


The contents of 'myfile' are given below:

Code:
cat myfile
11120800004  200312165USD000011495330?  JP,20800004  ,   JP,
111CB21031251210312165USD00000939048?  JP,CB21031251,   JP,
111BA0206    210312810USD000005540000?  M6,BA0206    ,   M6,

I want that from the second column in the delimited file i should extract last 8 characters.If column2 of delimited file is more than 8 characters ,last 8 characters should come in output file.If column2 of delimited file (without spaces included) is less than 8 characters ,then '0' should be added at start of column2 to make it of 8 character long.The length of column2 in myfile can be anything,and in output file should be 8 characters .The output file should look like :

Code:
11120800004  200312165USD000011495330?  JP,20800004,   JP
111CB21031251210312165USD00000939048?  JP,21031251,   JP
111BA0206    210312810USD000005540000?  M6,00BA0206,   M6

Last edited by Scrutinizer; 04-30-2012 at 05:19 PM.. Reason: extra code tags
# 4  
Old 05-01-2012
These input and output files differ significantly from you original samples. Try this:
Code:
awk -F, '{sub(/[ \t]+/,x,$2); len=length($2); $2=sprintf("%08s",(len>8?substr($2,len-8+1,8):$2)); NF--}1' OFS=, infile

Last edited by Scrutinizer; 05-01-2012 at 03:03 AM..
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