Add single quote

[Allanm]

I want to add a single quote to another single quote in a file. How do I do that?

the file is -

Allan's
Kelly Martha
Joe Chang's

So I want the output as -

Allan''s
Kelly Martha
Joe Chang''s

Thanks,
Allan

[James R. Ferguson · Accepted solution]

Hi Allan:

I find Perl the easist way (using the Ascii octal values):

# perl -pe 's/\047/\047\047/g' file

# perl -pi.old -e 's/\047/\047\047/g' file

...where the later updates "file" in-place.

Regards!

...JRF...

[Allanm]

Thanks JRF!

Allan.