Re: grep

[Alfred M. Szmidt]

* Holger Lehmann writes:
> Ok, ok I admit it: *I am* stupid. I got that from some other manpage where I 
> found all the escape chars.

Man pages suck. :)

>> 
>> Which is probobly what is happening.  Grepping for an ^H works just
>> fine (you can insert it with C-v C-h in bash).  The file `blah'
>> contains ^H's.
>> 
>> address@hidden:~$ grep '^^H' blah | wc -c
>> 5

> Does not work, sorry. I tried that. Try it out and use the test.txt file 
> attached to my original message. You might even send me a shell script.
> Typing this:

> grep '^<Control-V><Control-H>' test.txt

Maybe the test.txt file doesn't have ^H's? But some other weird
character?

I attached an file with a bunch of ^H's, could you try that?  And
do something like:
grep '^C-vC-h' backspaces  | wc -l  # Should be 5 ...
grep '^C-vC-h' backspaces  | wc -c  # and this should be 40.

I haven't really bothered checking your attachments, the lazy fool I
am.

> Now for a different idea: anyone knows if I can grep for a char when I know 
> the octal or hexadecimal code for it ? Like 0xa0 or 0240 ??? 
> tr does this with \NNN for octal numbers ... I was not able to find any 
> equivalent for grep so far ....
> (Maybe I am not only stupid but blind as well ?)

If no such functionality exists (I haven't checked) then maybe you
would like to implement this? :)

backspaces
Description: Binary data

-- 
Alfred M. Szmidt