Возникает ошибка при вводе большинства команд под termux.

$ apt upgrade

Reading package lists... Done

Building dependency tree Reading state information... Done

Calculating upgrade... Done

The following package was automatically installed and is no longer required: ndk-stl

Use 'apt autoremove' to remove it.

0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

$ su

gt510lte:/data/data/com.termux/files/home # apt upgrade

sush: apt: not found