lubuntu18.04如何用命令行打开一个应用（application)

以应用Telegram 为例

echo $PATH
/home/username/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin

2.查找需要打开应用的PATH

ln -s ~/Downloads/Telegram
Telegram/ Telegram Desktop/

3.进一步定位应用PATH，按键Tab

Telegram Updater

4.建立超链接

ln -s ~/Downloads/Telegram/Telegram ~/.local/bin/
chardetect tqdm

5.再次确认Telegram 的path

which Telegram
/home/username/.local/bin/Telegram

6.command打开应用 Telegram

Telegram