Learn about the new ⎕SHELL system function coming in Dyalog version 20.0 through this 21-minute conference presentation from Dyalog '24. Explore improvements to shell call functionality, including configurable options for character encoding, working directories, environment variables, and shell selection. Discover how to collect different output streams, handle exit codes, and manage input/output redirection more effectively. Watch demonstrations comparing ⎕SH versus ⎕SHELL and see practical examples of running Python from the Dyalog session. Understand advanced features like timeout settings, child process signaling, and window mode configurations that address previous limitations in monadic ⎕SH/⎕CMD operations.