-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 According to [EMAIL PROTECTED] on 10/27/2006 6:38 AM: > Thanks Dave - I guess I should have explained in my original email that > I'm converting a ksh script which currently runs successfully under > HP-UX. If I run the following command under HP-UX ksh: > > echo "Test" | read VAR1 > > VAR1 will hold the value "Test" in the parent environment. This doesn't > happen under Cygwin pdksh, and I don't understand why.
Because POSIX doesn't guarantee it. POSIX states that it is unspecified whether the last command in a pipeline executes in the parent or in a subshell. In HP-UX's ksh, they have implemented it as the parent shell. But on cygwin, both bash and pdksh have implemented it as the child shell. And assignments made by read in the child shell don't propagate back to the parent. By the way, none of this thread is cygwin-specific. - -- Life is short - so eat dessert first! Eric Blake [EMAIL PROTECTED] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.1 (Cygwin) Comment: Public key at home.comcast.net/~ericblake/eblake.gpg Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFFQf7984KuGfSFAYARAmlnAKDUu4j05wRdT7rT+2suwZ1r1eLYhgCgqH6R 1fftRbWxuf6Zkj76Hgv/HyM= =pv4W -----END PGP SIGNATURE----- -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
