Variables in shell script not working

[Carl Friis-Hansen]

Karl Auer wrote:
> On Sat, 2008-11-15 at 17:04 +0100, Jef Driesen wrote:
>> The output should always go to stdout and when the script is used with
>> a filename, the original should not be modified. So that excludes
>> running dos2unix on it directly.
> 
> Try
> 
>    FILENAME=$1
>    cat $FILENAME | dos2unix | sed s/foo/bar/ 
> 
> This will work even if there is no filename, because cat takes stdin if
> no file is specified. If there is a filename, the named file will not be
> modified.

You are right, I only looked at the response to dos2unix -h. I tried it:

carl at cjfh3:~$ echo "Hi foo my friend" | cat | dos2unix | sed s/foo/bar/
Hi bar my friend
carl at cjfh3:~$


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