Date: Mon, 3 Dec 2012 18:09:27 +0000 (UTC) From: jb <jb.1234abcd@gmail.com> To: freebsd-questions@freebsd.org Subject: Re: bash pipe redirection gets stuck Message-ID: <loom.20121203T190423-428@post.gmane.org> References: <23353.144.36.114.84.1354545315.squirrel@mail.rule.lv>
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<long <at> rule.lv> writes: > > Dear all, > I stumbled upon a problem where multiple pipe redirection occasionally get > stuck when trying to get sha256 sum of a stream. > > You can try to reproduce the problem if you have /usr/ports/shells/bash > installed (output redirection used in this command is possible only in > bash). > Create temporary test file with command: "dd if=/dev/urandom of=/tmp/file1 > bs=1k count=10" > And the command I'm using is: > /usr/local/bin/bash -c 'cat /tmp/file1 | tee >(/sbin/sha256 > > /tmp/file1.sha256) > /tmp/file1.copy' ; echo $status > ... Do you get stuck with this ? Does it make any difference ? /usr/local/bin/bash -c 'cat /tmp/file1 | tee /tmp/file1.copy | /sbin/sha256 \ /tmp/file1.sha256' ; echo $status jb
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