a-Shell is an iOS terminal emulator that includes Python, Luna, JavaScript, C, C++, TeX. Transfer files using scp and curl, edit them with vim and ed, process them using grep, awk, and sed. It can be controlled via Shortcuts, like running commands in order, processing files, outputting results to text, and transferring files to other apps. Thanks to iOS 13 you can run multiple instances of a-Shell at the same time with different commands and inside different directories. App Store: Free
Check It Out: Meet ‘a-Shell’, an iOS Terminal Emulator With Vim Built In