AWK Problem


 
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# 1  
Old 03-24-2005
Error AWK Problem

Hi,

I posted something here about this yesterday but I can't seem to
find it. I needed help writting a script which would append a file
with new lines after every so many charachters.

Example: (my original flat file)

L60 LETTER OF CREDIT 60 DAYS W00 ON RECEIPT WIRE TRANSFER W30 NET 30 WIRE TR
ANSFER W45 NET 45 WIRE TRANSFER W60 NET 60 WIRE TRANSFER

I need to look like this:

L60 LETTER OF CREDIT 60 DAYS
W00 ON RECEIPT WIRE TRANSFER
W30 NET 30 WIRE TRANSFER
W45 NET 45 WIRE TRANSFER
W60 NET 60 WIRE TRANSFER

Basically, I needed a script that inserted a new line after so many chars.

This is the script someone helped me out with:

====
#!/usr/bin/nawk -f
#
###fold.awk
#

{
if (!width) width=31;
line = $0;
do {
newline = substr(line, 0, width);
if (newline !~ "^[ \t]*$") { print newline }
line = substr(line, width+1);
}
while (length(line) > 1);
}
====

This works great! However, now I'm having a problem with "line too long"
errors with extremely large files:

nawk: input record `0101100010HORSES AND...' too long
source line 16 of file /usr/local/bin/fold.awk

I know there is a limit in awk. Also, from the post from yesterday, someone
was really pushing an SED script. Can SED handle large lines?

Does someone know if I can do this another way or with the same
script? This is a hot one for me.

Thank you for this great board!

Thanks!
# 2  
Old 03-24-2005
sed to the rescue... when all else fails LOL
Code:
sed 's/DAYS/DAYS\n/g;s/SFER/SFER\n/g' filename | sed 's/^ //;/^[ \t]*$/d'

where is the other thread... can't find it!
# 3  
Old 03-24-2005
Quote:
Originally Posted by tanku
sed to the rescue... when all else fails LOL
Code:
sed 's/DAYS/DAYS\n/g;s/SFER/SFER\n/g' filename | sed 's/^ //;/^[ \t]*$/d'

where is the other thread... can't find it!

Can't find it either ....

Tanku, can you explain what the sed statement is doing. I hate
to be a pest.

Also, I need gnu sed for this, right?

Thanks!
# 4  
Old 03-24-2005
Quote:
Originally Posted by gseyforth
Can't find it either ....

Tanku, can you explain what the sed statement is doing. I hate
to be a pest.

Also, I need gnu sed for this, right?

Thanks!
Wait, I just realized what its saying. My problem is that the end
of line won't always be the same. I would like to use sed to insert
a new line after every so many charachters.

Thanks!
# 5  
Old 03-24-2005
doesn't need gnu sed hopefully... did you try it? how is it?
what other words end on the line? we can add them
# 6  
Old 03-24-2005
Quote:
Originally Posted by tanku
doesn't need gnu sed hopefully... did you try it? how is it?
what other words end on the line? we can add them
I could be dealing with thousands of records but the records are
at a set length. That's my problem. Smilie
# 7  
Old 03-24-2005
Quote:
Originally Posted by gseyforth
I could be dealing with thousands of records but the records are
at a set length. That's my problem. Smilie
I'm sorry, to be a bit more clear:

Thousands of records that could end many different ways.

Thanks!
 
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