How append a string at the end of all lines?

I'm trying to add a string at the end of all lines in a text file, but I have a mistake somewhere.

Example:

I've this in a text file:

begin--fr.a2dfp.net
begin--m.fr.a2dfp.net
begin--mfr.a2dfp.net
begin--ad.a8.net
begin--asy.a8ww.net
begin--abcstats.com
...

I run:

sed -i "s|\x0D$|--end|" file.txt

And I get:

begin--fr.a2dfp.net--end
begin--m.fr.a2dfp.net--end
begin--mfr.a2dfp.net--end
begin--ad.a8.net
begin--asy.a8ww.net--end
begin--abcstats.com
...

The string is added only in certain lines and not in others.

Any idea why?

rkifo

Posted 2014-01-30T17:29:21.050

Reputation: 53

Answers

\x0D is carriage return, which may or may not be visible in your text editor. So if you've edited the file in both Windows and a Unix/Linux system there may be a mix of newlines. If you want to remove carriage returns reliably you should use dos2unix. If you really want to add text to the end of the line just use sed -i "s|$|--end|" file.txt.

l0b0

Posted 2014-01-30T17:29:21.050

Reputation: 6 306

Yes, it's a text file from Windows edited in Linux. dos2unix really solve problem and now, add --end at the end of all my lines. Thank You!!!! – rkifo – 2014-01-30T17:54:46.557

@user294721 if this answer solves your problem, please remember to mrk it as accepted. – terdon – 2014-01-30T18:06:13.420

1you can remove the carriage returns in the same sed: sed 's/\r\?$/--end/' – glenn jackman – 2014-01-30T18:17:08.523

There are may ways of doing this:

Perl
```
perl -i -pe 's/$/--end/' file.txt
```
sed
```
sed -i 's/$/--end/' file.txt
```

awk

awk '{$NF=$NF"--end"; print}' file.txt > foo && mv foo file.txt

shell

while IFS= read -r l; do 
 echo "$l""--end"; 
done < file.txt > foo && mv foo file.txt

terdon

Posted 2014-01-30T17:29:21.050

Reputation: 45 216

@user294721 you're very welcome. Please remember to accept one of these answers so the question can be marked as answered.

– terdon – 2014-02-02T19:44:27.147

You may try using ex:

ex +"%s/$/--end/g" -cwq foo.txt

which is equivalent to vi -e.

Option -i isn't quite compatible between Linux and Unix and it may not be available on other operating systems.

kenorb

Posted 2014-01-30T17:29:21.050

Reputation: 16 795