Help with shell script: moving end of line character

Shell Programming and Scripting
1

Hello.

I have a file (old.txt) that I need to copy into another file (new.txt).

Each line on old.txt ends with CR/LF but the position of CR/LF varies from one record to another.

I need to copy each line of record to new.txt and move CR/LF in pos 165.

Can I use awk to achieve this? How? If not, what other options can be used?

Thank you. Your response(s) are greatly appreciated.

2

For copying the lines except the last character ,you can use something like this :

awk '{ print substr($0,1,length($0)-1)}' filename.txt
3

Did u mean u need to append spaces for the rest of the line till 165th character...

Then u can adapt

awk '{printf "%-165s\n",$0}' old.txt > new.txt

All lines will be left justified for 165 characters...

4

If CR/LF is found at position 100, I would need to copy all characters from 1-99, and append spaces from position 100-164.

How do we do this?

5

Ohh.. is it something like this ?.

awk '{ print substr($0,1,length($0)-1);for(i=length($0)+1;i<165;i++) print " "}' filename.txt
6

Can u try the above comamnd on ur file and let me know the result.. If that does not work, let us give a simple input and ur expected output

7

this is my test data:

HEADER    BBBBB_gllvdcout  20091106.1700040715
AA  *     EAA        EAAAAAA     6AAAAAAAA0     Y AAAA AAA SAAAAA MAAAAAAAAAA
AB  *     EBB        EBBBBBB     6BBBBBBBB0       BBBB BBB BBBBBB BBBBBBBBBBB
TRAILER   351845           20091106.170004

when I tried the above command I get this:

HEADER    BBBBB_gllvdcout  20091106.170004071
 .
 .
 .
 .
 .
 AA  *     EAA        EAAAAAA     6AAAAAAAA0     Y AAAA AAA SAAAAA MAAAAAAAAA
 .
 .
 .
 .
 .
 AB  *     EBB        EBBBBBB     6BBBBBBBB0       BBBB BBB BBBBBB BBBBBBBBBB
 .
 .
 .
 .

---------- Post updated at 01:10 AM ---------- Previous update was at 01:06 AM ----------

when i tried this:

awk '{printf "%-165s\n",$0}' old.txt > new.txt

I get this:

HEADER    BBBBB_gllvdcout  20091106.1700040715                                                                                                                       
AA  *     EAA        EAAAAAA     6AAAAAAAA0     Y AAAA AAA SAAAAA MAAAAAAAAAA                                                                                        
AB  *     EBB        EBBBBBB     6BBBBBBBB0       BBBB BBB BBBBBB BBBBBBBBBBB                                                                                        
TRAILER   351845           20091106.170004

CR/LF is at position 166.

8

Try this :

awk '{pr=substr($0,1,length($0)-1);for(i=length($0);i<166;i++) pr=pr"-" ; print pr}' filename.txt

Note i used "-" instead of " " for better readability

9

awk '{printf "%-164s\n",$0}' old.txt > new.txt .. should do the job..