Complex sentence: But many applications on Windows interpret a slash for other purposes or treat it as an invalid character, and thus require you to enter backslash--notably the cmd.exe shell (often called the "terminal" as it typically runs in a terminal window).
Split into simpler sentences: But many applications on Windows interpret a slash for other purposes or treat it as an invalid character, and thus require you to enter backslash. One of the prime examples is the cmd.exe shell (often called the "terminal" as it is typically run in a terminal window).