Tcl, a programming language that has been around since the 1990s, is noted for its flexibility and versatility. Users have mixed experiences with it; while some recognize its power, others criticize its type system and string-based philosophy, suggesting it leads to messy code. The language is particularly favored for automation tasks, as demonstrated by one user who leveraged Tcl's Expect extension for scripting SSH commands on a poorly implemented Cisco switch. The debate around Tcl's usability over the years, especially in the context of its licensing and design philosophy, continues to spark interest within the programming community. This guide aims to provide insights into Tcl’s modern applications and challenges, catering to both new and returning users.