UNIX for Dummies Questions & Answers

Code:

tr -d '[\000-\177]'  < file | grep .
if [[ $? -eq o ]] ; then
     echo found non-ascii
else
     echo found ascii
done

Yes it worked on my test case:

Hola aqui esta Español.
Hello here is English.

I have a bug though... :-( Since it doesn't delete newlines, it will display all of them! Maybe your results just scrolled off the screen :-\ . Bah, computers. It's their fault. :-)

So you'd need some additional logic if you wanted to print out only the lines with newlines that actually had non-ascii char(s) in them.

Hi all,
Thanks for your inputs.
@awk - the [:alnum] thing doesnt work out. It seems i have a older version of grep, since [:ascii] is also not working..
@reborg - your command indeed lists only the non-ascii characters, but leaves all other characters in the line. So all the non-ascii characters in the file are printed as a whole junk..

It seems i need a newer version of grep to use grep -v '[:ascii]' file...

Thanks
Srini