Re: filter

[cjw44@flatline.org.uk (Colin Watson)]

"Marcelo Chiapparini" <chiappa@centroin.com.br> wrote:
>I am trying to set my printer to work with potato. It is a HP
>DeskJet870Cxi. After installing the 
>lpr package I can print text files, but with a "stair" effect. I added the
>following entry to the 
>pritcap file:
>
>  :if=/etc/filter.txt:\
>
>where the file filter.txt is
>
>                #!/usr/bin/perl
>                         while(<STDIN>){chop $_; print "$_\r\n";};
>                         print "\f"
>
>this filters is supposed to solve the stair effect. But when a try to
>print a text file, the system complies about 
>the following:
>
>                  cannot execv /etc/filter.txt

1) You almost certainly need to 'chmod +x /etc/filter.txt'.

2) Executable programs aren't normally put in /etc these days; try
   /usr/local/bin instead.

3) Perl programs conventionally have the extension .pl, not .txt.

4) Is the spacing above literal? The '#!' needs to be the first two
   characters in the file.

5) unix2dos (in the sysutils package) does roughly the same thing as
   your program, although without the form-feed at the end.

Only 1) is (likely to be) causing your problem, but the rest are (I
hope) useful stylistic comments. :)

-- 
Colin Watson                                     [cjw44@flatline.org.uk]