Bash 等效性斗争
我在这次 Bash 中哪里做错了? declare current_state=`pacmd list-sources | sed -n 19p` declare my_target='used by: 0' echo $current_state = $my_target if [ '$current_state' = '$my_target' ] ; then echo true pacmd set-default-sink "alsa_output.pci-0000_0c_00.4.analog-stereo" echo tru...