What system is indicated if a technician saved a file as a .sh?

The indication that a file has been saved with a .sh extension strongly points to a Linux operating system. Files with the .sh extension are typically shell scripts used in Unix-based systems, which include various distributions of Linux. These scripts often contain a series of commands and are executed within a terminal that utilizes a shell, such as bash (Bourne Again SHell).

The naming convention of file extensions is essential in identifying the purpose and associated environment of a file. In this case, .sh files are universally recognized in the context of Linux systems. This contrasts with the other options, which have different file types and extensions associated with them. For example, PowerShell scripts typically have a .ps1 extension, JavaScript files use .js, and Python scripts are generally saved with a .py extension. Therefore, the .sh extension distinctly identifies the file as a shell script intended for use within a Linux operating system.