K=dvb0.net A=${K#dvb} eval echo \$A
unset K A
x=${K:=dvb0.net0} A=${K#dvb} eval echo \$A

unset K A
K=dvb0.net A=${K#dvb} echo "$A"
unset K A
K=dvb0.net A=${K#dvb} ; echo "$A"
unset K A
K=dvb0.net A=${K#dvb} eval echo '$A'
unset K A
K=dvb0.net A=${K#dvb} eval echo \$A