greeting() { return 'Hello' } party() { return 'World' } main() { echo $[greeting] $[party] return 0 } ### greeting() { __retval0='Hello' ! [ x'Hello' = x ] && ! [ x'Hello' = xfalse ] || [ x'Hello' = x0 ] } party() { __retval0='World' } main() { greeting party echo ${__retval0} ${__retval0} __retval0=0 ! [ x0 = x ] && ! [ x0 = xfalse ] || [ x0 = x0 ] }