[Techtalk] real life kewl text-processing and regexps sampleswanted

[H. Peter Anvin]

dominik.schramm at gmxpro.net wrote:
> "Kathryn Hogg" <kjh at flyballdogs.com> writes:
> 
>>Brenda Bell said:
>>
>>>A command I use a lot is:
>>>
>>>    cat dos-file.txt | sed -e '1,$s\^M\\g' >linux-file.txt
>>
>>I use dos2unix for those conversions.
> 
> 
> dos2unix is not always installed. When I have to 
> convert DOS to Unix line endings on such systems
> (and I don't want to/can't install dos2unix) I use 
> 
> perl -pi -e 's/\r\n/\n/' filename
> 
> ("p" means loop over input lines; "i" means in-place editing;
>  "e" means use script from command line)
> 

Or using strictly standard Unix tools (in case you have to deal with 
primitive systems which don't come with Perl installed):

	tr -d '\r' < filename > filename.out

(This does kill single \r's as well, though.)

	-hpa