Removing inserted newlines from a fileld of fixed width file.
Hi champs!
I have a fixed width file in which the records appear like this
Code:
11111 <fixed spaces such as 6> description for 11111 <fixed spaces such as 6> some more field to the record of 11111
22222 <fixed spaces such as 6> description for 22222 <fixed spaces such as 6> some more field to the record of 22222
33333 <fixed spaces such as 6> description
for 33333 <fixed spaces such as 6> some more field to the record of 33333
44444 <fixed spaces such as 6> description for 44444 <fixed spaces such as 6> some more field to the record of 44444
As you see, the record for 33333 is split into two records because of newline inserted in description of 33333. I want these extraneous newlines from description field to be removed for records where ever they appear in the file.
Clues can be : check the file for length 11 -32 for each record and if newline is present strip it off.
Any other solution is welcome too.
I want the output to be :
Code:
11111 <fixed spaces such as 6> description for 11111 <fixed spaces such as 6> some more field to the record of 22222
22222 <fixed spaces such as 6> description for 22222 <fixed spaces such as 6> some more field to the record of 22222
33333 <fixed spaces such as 6> description for 22222 <fixed spaces such as 6> some more field to the record of 33333
44444 <fixed spaces such as 6> description for 44444 <fixed spaces such as 6> some more field to the record of 44444
- it is not fixed that line break will appear after 'description' only..it can appear anywhere in the second field.But it is sure that it will appear in second field only, incase it appears.
- This is just the sample record for understanding, code should not be dependent on it.The code can be dependent on positioning if required.
It is a fixed width file that means each filed is identified by length in the record.
Please let me know if you need more clarification.
Last edited by enigma_1; 08-18-2009 at 06:55 PM..
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Thank You.
The UNIX and Linux Forums
---------- Post updated at 05:54 PM ---------- Previous update was at 05:38 PM ----------
something to start with...
'len' is a known/expected length of ALL the records (assuming they are of the same length) - defaulted to '73'.
Assumption: there's only ONE extra new-line per 'broken' record.
nawk -f enigma.awk myFile
OR
nawk -v len=63 -f enigma.awk myFile
enigma.awk:
Code:
BEGIN {
len=(!len)?73:len
}
length < len {
if (length(s)) { print s OFS $0;s=""}
else s=$0
next
}
1
The code you provided worked for me for the records broken into two.
But I have some more problems. Hope you can help.
As ytou mentioned in your assumption that record is divided into two records only.
Unfortunately In my file I have just one record which is divided into three records.
Sample:
Code:
33333 <fixed spaces such as 6> description
for
33333 <fixed spaces such as 6> some more field to the record of 33333
which needs to be :
Code:
33333 <fixed spaces such as 6> description for 33333 <fixed spaces such as 6> some more field to the record of 33333
Can we have some modification to the enigma.awk program to take care of record break to three records?? If I can ask for more, Can we have the code to take care of any level of record break heirarchy for each record?
I guess you need some identification for each records start.
In my file each new record starts from column(length)= 16. If any record starts from before length 16, it is continuation of previous record.
Thank u so much .Its working fine as expected.
---------- Post updated at 03:41 PM ---------- Previous update was at 01:46 PM ----------
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08-18-2009
Removing inserted newlines from a fileld of fixed width file.
