On 2009-02-13, Antonio Macchi <antonio_mac...@alice.it> wrote: > i think that > > $ ( echo $x ) > > is like > > $ bash -c 'echo $x'
it is confusing I agree. 'man bash' and look for the section 'COMMAND EXECUTION ENVIRONMENT', which essentially says that a simple command gets a different environment (namely only the exported variables) than 'commands grouped with parantheses'.
