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Bad file description for win32/bash/perl combo

( #11749=categorized question: print w/ replies, xml ) Need Help??
Contributed by Coyo on May 16, 2000 at 00:56 UTC
Q&A  > input and output


Description:

bash$ perl -e '`find > foo`; print \"$!\n\";'

gives me the following output

Bad file descriptor

I can run `find` fine, as long as I don't pipe it or redirect output.

I run the following in Bash version 2.021 with Perl 5.6.0 build 613 on NT 4.00.1381 (4.0) with Service Pack 5.

No file redirection or piping seems to work.

-coyo (running NT due to a past life karma debt, no doubt)

Answer: Bad file description for win32/bash/perl combo
contributed by Coyo

Too many files!

Well, I may not have answered the question, but I have found that even putting too large of a string into a backtick operation causes the 'Bad file descriptor' error.

`wc $lots_of_files`;
does not work. It can be broken up so to be made to work:
@lots_of_files = split($lots_of_files);

$third = $#lots_of_files;

$a = join(' ', @lots_of_files [0..$third] );

$a = join(' ', @lots_of_files [1+$third..2*third]);

$a = join(' ', @lots_of_files [1+2*$third..$#lots_of_files] );

`wc $a`;

`wc $b`;

`wc $c`;

Well, that seems to work. It doesn't explain why redirection is failing for me in just about all cases though.

Maybe this is usefull to someone.

-coyo

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