Find ASCII character in a file

grep -l "search_pattern" *

-l will return only filename

about char(128)  let me tested first

Thanks HamdyHassan !!!
I know "grep". I don't know how to use ascii-128 character code for search.

idea, to dump the file and search the dump

prompt> od -c filename | grep 307

Why 307 ?


1557 bin/ee> cat filename.txt
hello
char 128 is  Ç


1556 bin/ee> od -c filename.txt
0000000   h   e   l   l   o  \n   c   h   a   r       1   2   8       i
0000020   s         307  \n
0000025

-----------------
what -c means ?
-----------------
    -c        Display  single-byte  characters.   Certain   non-
               graphic  characters  appear as C-language escapes:
               null=\0, backspace=\b, form-feed=\f,  new-line=\n,
               return=\r,  tab=\t; others appear as 3-digit octal
               numbers.  For example:
               echo "hello world" | od -c
               0000000   h   e   l   l   o       w    o    r    l
               d  \n
               0000014

i'm doing the same. I'm wondering...Is there any command that can directly take care of this..

Sorry..your another comment was not there when I posted this. I'm not looking for a pattern "char-128". I'm having a character in a file whose ascii value is 128.

Yes, I know you are looking for char with ascii value 128

which is listed at the ascii table
http://www.dotnet4all.com/default.asp?NavID=486

128  Ç

for some reason, when I post, EE convert "Ç" to  "G"

Any way, try
prompt> od -c filename | grep 307

and let me know if that working or not

\307 is C-language escapes for ASCII 128

and when you use "od -c " it appears as 307.

will it be 307 or 200?

Hmm.  Is there an ascii 128 character?  man ascii, I don't see it in there.

Ascii codes go beyond that shown in man ascii.
The characters beyond this range cover the multinational character set (e.g. the French c-cedilla ascii 231).

Try the following to display a Scandinavian (?) 'o' character (ascii 248).

echo "\0370"

It's \0307  not \0200

and yes it's working using grep echo idea

1592 bin/ee> grep `echo "\0307"` filename.txt
char 128 is  Ç


so you can use the following command

grep -l `echo "\0307"` *

where
` is back quote



             

Hi,
the script below achieves your need.

for f in `ls`
do
 awk '/\200/ {print FILENAME}' $f
done


good luck!

Thank you all for your help and suggestions.