cygwin 1.3.12 problem with using pipes
David MacMahon
cygwin@smartsc.com
Thu Jul 25 04:48:00 GMT 2002
I don't know whether this is related to your problem, but I've observed
the following behavior...
$ cat foo.sh
#!/bin/bash
foo="$(echo A;echo B;echo C;echo D)"
echo "${foo}" | od -c
echo
echo "${foo#????}" | od -c
$ ./foo.sh
0000000 A \n B \n C \n D \n
0000010
0000000 C \n D \n
0000004
$ ./foo.sh > /binmode-mount/foo.tmp && cat /binmode-mount/foo.tmp
0000000 A \n B \n C \n D \n
0000010
0000000 C \n D \n
0000004
$ ./foo.sh > /textmode-mount/foo.tmp && cat /textmode-mount/foo.tmp
0000000 A \r \n B \n C \n D \n
0000011
0000000 C \r \n D \n
0000005
Is that last one weird or what? Clearly, the extraneous carriage return
comes in during the pipe to od, but only when the script's output is
redirected to a file under a textmode mount point and only the first
newline gets an extraneous carriage return.
I'm pretty sure I get the same thing regardless of whether I have
CYGWIN=binmode or CYGWIN=nobinmode.
Dave
--
David MacMahon, President
Smart Software Consulting
http://www.smartsc.com
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