Remove carriage return and append the next line Post: 302972930

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Top Forums Shell Programming and Scripting Remove carriage return and append the next line Post 302972930 by RavinderSingh13 on Thursday 12th of May 2016 12:41:14 AM

05-12-2016

Moderator

Quote:

Originally Posted by mad man

@ Ravinder singh

i executed the last command and got 1329 as maximum value in the file.
i edited the command you have given replacing all 1330 with 1329 still no luck.
Thanks
@RudiC hope my last post would have answered you too.

Hello mad man,

Could you please try following and let me know if this helps.

Code:

awk 'FNR==NR{len=length($0)<len?len:length($0);next} {gsub(/\r/,X,$0);if(length($0)<len){Q=Q?Q OFS $0:$0};if(length($0)==len){if(Q){print Q;Q=""};print}}'  Input_file  Input_file

Above code will find out the maximum length into your Input_file and then if any line in Input_file is having lesser length than maximum length value it will print them all together. There could be more terms and conditions but as per your requirement shown I would like to suggest you please try above and let me know how it goes then.

EDIT: Adding a more robust code here, so let's say our Input_file is as follows.

Code:

cat Input_file
Blah blah blah blah Blah blah blah blah
Blah blah blah blah Blah blah blah blah
Blah blah blah blah Blah
blah blah blah
Blah blah blah blah Blah blah blah
Blah blah blah blah Blah blah blah blah

Here I have assumed like if we take maximum length in whole file and then we try merge the lines, there may be a chance while merging lines that they could cross the maximum length as follows we will get while running above code.

Code:

awk 'FNR==NR{len=length($0)<len?len:length($0);next} {gsub(/\r/,X,$0);if(length($0)<len){Q=Q?Q OFS $0:$0};if(length($0)==len){if(Q){print Q;Q=""};print}}'  Input_file Input_file
Blah blah blah blah Blah blah blah blah
Blah blah blah blah Blah blah blah blah
Blah blah blah blah Blah blah blah blah Blah blah blah blah Blah blah blah (Which is more than maximum length)
Blah blah blah blah Blah blah blah blah

To remove these kind of conditions(if you have any into your Input_file) you could try following code then for same.

Code:

awk '{Q=Q?Q OFS $0:$0;len=NF<len?len:NF} END{;print Q > "tmp_file";system("xargs -n " len " < tmp_file")}'   Input_file; rm tmp_file

Output will be as follows then.

Code:

Blah blah blah blah Blah blah blah blah
Blah blah blah blah Blah blah blah blah
Blah blah blah blah Blah blah blah blah
Blah blah blah blah Blah blah blah Blah
blah blah blah Blah blah blah blah

Thanks,
R. Singh

Last edited by RavinderSingh13; 05-12-2016 at 02:41 AM.. Reason: Added more robust solution on same now.

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