Removing Carriage return in a file after particular string

Shell Programming and Scripting
1

Hi All,
I want to remove carriage return in a file using some unix command without writing a script
my file is as follows

abc1 abc2 abc3 abc4
abc5 bac6
abc1 abc2 abc3 abc4
abc5 bac6

I want the output as follows:
abc1 abc2 abc3 abc4 abc5 bac6
abc1 abc2 abc3 abc4 abc5 bac6
,
Please tell me how to remove the spaces withut loosing the message

2

Try:

perl -pe 's/\n/ / if $.%2' file
3

based on the input given ..

$ paste -d' ' - - < infile
4

Try

code:
cat filename | xargs -n 2

5

@tarun, you get a useless use of cat award .. :slight_smile:

I assume, with -n option we cannot achieve the expected output.

Instead we can to do in this way with xargs 

$ xargs -L 2 < infile
abc1 abc2 abc3 abc4 abc5 bac6
abc1 abc2 abc3 abc4 abc5 bac6
6

Can be done with "-n"

cat filename | xargs -n 6
abc1 abc2 abc3 abc4 abc5 bac6
abc1 abc2 abc3 abc4 abc5 bac6
7

Incase the second line has 3 values then it will fail .. :slight_smile: It will not bind 2 lines as a single line ..

$ cat infile
abc1 abc2 abc3 abc4
abc5 bac6 abc1
abc1 abc2 abc3 abc4
abc5 bac6
$
$ xargs -n 6 < infile
abc1 abc2 abc3 abc4 abc5 bac6
abc1 abc1 abc2 abc3 abc4 abc5
bac6
$
$ xargs -L 2 < infile
abc1 abc2 abc3 abc4 abc5 bac6 abc1
abc1 abc2 abc3 abc4 abc5 bac6
$
8

@ Jayan, agreed with you.

@ Manish, with sed you can try below

sed -n '
{
N
s/\n//;p;
}
' filename