TrollStore:
1. Install Filza File Manager + Apple Terminal
2. Open Filza File Manager - go to /var/containers/Bundle/Application/Filza.app/bins/bin/fish - copy path
3. Open Apple Terminal - Options - Paste copied path to "Command"
4. Back to Filza File Manager - Go to /var/mobile/.config/fish - fish installed
5. DO NOT CLOSE Filza File Manager - Go to /var/containers/Bundle/Application/Filza.app/bins/bin/sh - copy path
6. Back to Apple Terminal - Options - Paste copied path "Command"
7. Terminal window - export PATH=$PATH:/var/containers/Bundle/Application/.../Filza.app/bins/bin - press return
8. Терминал готов к работе.

For Filza:
Go to Documents - create new file - change file extension to .sh