How append a string at the end of all lines?

Question

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?

score 10 · Accepted Answer · answered Jan 30 '14 at 17:33

10

\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.

answered Jan 30 '14 at 17:33

l0b0

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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 Jan 30 '14 at 17:54
@user294721 if this answer solves your problem, please remember to mrk it as accepted. – terdon Jan 30 '14 at 18:06
1

you can remove the carriage returns in the same sed: `sed 's/\r\?$/--end/'` – glenn jackman Jan 30 '14 at 18:17

score 4 · Answer 2 · answered Jan 30 '14 at 18:12

4

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

answered Jan 30 '14 at 18:12

terdon

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@user294721 you're very welcome. Please remember to [accept](http://superuser.com/help/someone-answers) one of these answers so the question can be marked as answered. – terdon Feb 02 '14 at 19:44

score 0 · Answer 3 · answered May 25 '15 at 12:33

0

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.

answered May 25 '15 at 12:33

kenorb

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27
129
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How append a string at the end of all lines?

3 Answers3