On Tue 25 Mar 2014 00:39:18 Pollock, Wayne wrote: > $ echo $BASH_VERSION > 4.2.45(1)-release > > $ unset foo > > $ foo=bar : > > $ echo $foo > > > $ > > =============== > > According to POSIX/SUS issue 7, assignments for special builtins > should persist. So the output should be ``bar''. > > Is there a setting I should turn off (or need to enable), to > make this work correctly? > > I was able to confirm this bug for version 4.2.37(1)-release as > well. (zsh 4.3.17 (i386-redhat-linux-gnu) has the same bug.)
as noted, this is a feature of bash :) POSIX also imposes annoying behavior that bash fixes: unset foo f() { :; } foo=bar f echo $foo POSIX will show bar (ugh) while bash will not (yeah!) -mike
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