我只是想让一个脚本运行或不运行或出错。
我的计划很简单：
Check is spotifyd running (y/n)
if yes
say "It's running"
if no
try to run
did it work (y/n)
if yes
say It started
if no
say it gave an error
（更容易理解的版本：如果spotifyd给出错误，则不要启动守护进程。因此，如果它不运行，我们将尝试运行。如果仍然不运行，则说错误）
这是我的代码（我是菜鸟，所以你的眼睛可能会流血）
date=$(date "+%d.%m.%Y %H.%M")
if [ "spotifyd" == $(ps aux | grep spotifyd | grep "0.1" | awk '{print $11}') ]; then
echo "[$date] Procces is allready running"
exit
elif [ "" == $(ps aux | grep spotifyd | grep "0.1" | awk '{print $11}') ]; then
spotifyd
exit
elif [ "spotifyd" == $(ps aux | grep spotifyd | grep "0.1" | awk '{print $11}') ]; then
echo "Procces has started"
exit
elif [ "err" == $(ps aux | grep spotifyd | grep "0.1" | awk '{print $11}' || echo "err") ]; then
echo "[$date] Procces couldn't start. Check the procces' manual"
exit
fi