Mail Archives: cygwin/2004/03/30/14:55:53
Mike,
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On Tue, 30 Mar 2004, Mike Spertus wrote:
> Igor Pechtchanski wrote:
> > On Tue, 30 Mar 2004, Mike Spertus wrote:
> >
> >> I have installed Cygwin with DOS linebreaks (i.e., disks mounted in
> >> textmode). However, Cygwin perl doesn't seem to understand this as shown
> >> below. How do I tell Cygwin perl to respect textmode?:
> >>
> >> MPS AT MPS-2000 ~
> >> $ od -t x1 foo.txt
> >> 0000000 66 6f 6f 62 61 72 0d 0a 66 6f 6f 62 61 7a 0d 0a
> >> 0000020 66 6f 6f 62 61 74 0d 0a 0d 0a
> >> 0000032
> >>
> >> MPS AT MPS-2000 ~
> >> $ cat ~/foo.txt | perl -e 'while (<>) {print;}' >bar.txt
> >>
> >> MPS AT MPS-2000 ~
> >> $ od -t x1 bar.txt
> >> 0000000 66 6f 6f 62 61 72 0d 0d 0a 66 6f 6f 62 61 7a 0d
> >> 0000020 0d 0a 66 6f 6f 62 61 74 0d 0d 0a 0d 0d 0a
> >> 0000036
> >>
> >> MPS AT MPS-2000 ~
> >> $ mount
> >> C:\cygwin\bin on /usr/bin type system (textmode)
> >> C:\cygwin\lib on /usr/lib type system (textmode)
> >> C:\cygwin on / type system (textmode)
> >> c: on /cygdrive/c type user (textmode,noumount)
> >> g: on /cygdrive/g type user (textmode,noumount)
> >> r: on /cygdrive/r type user (textmode,noumount)
> >>
> >> Is this a bug? Any suggestions?
> >>
> >> Thanks,
> >> Mike
> >
> > When you use pipes, you lose the mount mode information. Try running
> >
> > $ perl -e 'while (<>) {print;}' <~/foo.txt >bar.txt
> >
> > instead. For controlling the mode of pipes, read about the "(no)binmode"
> > option at <http://cygwin.com/cygwin-ug-net/using-cygwinenv.html>.
> > Igor
>
> I tried running your command, and exactly the same problem occurred :(
> In fact, my original perl script that I simplified in the post actually
> got the filename from the command line.
>
> Mike
IIRC, this was remedied by setting PERLIO="crlf" in your environment.
IOW, I was able to reproduce your problem, but running
$ PERLIO=crlf perl -pe '' <foo.txt > bar.txt
worked.
Igor
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