Le 24/09/2010 14:52, Sascha Ziemann a écrit : > The expression: > > declare a='x'$(false) > > means: concatenate the string 'x', which evaluates to itself, and the > output of a sub shell, which performs the false command, and assign > the concatenated value to the variable a. > > This means that the sub shell fails *before* 'declare' starts. So I > think it should not matter what declare returns, because the script > should have been terminated already.
The *subshell* exits. But this does not force its "declaring" parent script to exit. Also note this difference: set -e ; declare a=$( false; echo something ); echo $a => "something" set -e ; declare a=$( set -e; false; echo something ); echo $a => <nothing>
