-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 According to Юрий Пухальский on 11/26/2009 1:02 PM: > Good day! > > Theres is a problem with a following code: > > echo a:b|IFS=: read a b; echo $a
This is E4 in the FAQ: ftp://ftp.cwru.edu/pub/bash/FAQ POSIX permits, but does not require, that the final element of a pipeline be executed in a subshell. Bash uses the subshell, ksh does not. Variable assignments in a subshell do not affect the parent. Meanwhile, read obeys IFS according to POSIX, as shown by: $ IFS=: read a b <<EOF > 1:2 > EOF $ echo $a 1 - -- Don't work too hard, make some time for fun as well! Eric Blake e...@byu.net -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (Cygwin) Comment: Public key at home.comcast.net/~ericblake/eblake.gpg Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEUEARECAAYFAksO4IwACgkQ84KuGfSFAYBZJACXegDrdvJQ/f/gS5e/8Yv4uK4o 3wCgkMPnOh7I9ttElaHtQrMBzCJa1lg= =C2Ol -----END PGP SIGNATURE-----
