如何重用和命令的apt up一部分，在没有别名的情况下在一行中按顺序执行两个命令。apt updateapt upgrade
apt up
apt update
apt upgrade
类似的东西：apt up{date,grade}。
apt up{date,grade}
upgrade updates command-line apt bash
apt ×1
bash ×1
command-line ×1
updates ×1
upgrade ×1