Force Unrar to Assume No to All Prompts

When extracting archives via the command line, unrar defaults to prompting the user whenever conflicts occur, such as when an extracted file already exists in the destination directory. While the -y flag forces the utility to assume "yes" to all interactive queries, you can force unrar to automatically answer "no" by using the native -o- overwrite switch or by piping standard input into the command.

Method 1: Using the Native -o- Switch

The vast majority of interactive prompts generated by unrar pertain to overwriting existing files. While -o+ forces an overwrite (answering "yes"), -o- tells unrar never to overwrite existing files, effectively passing a "no" to all overwrite queries.

To extract with full paths while skipping existing files:

unrar x -o- archive.rar

To extract directly into the current directory without subdirectories while skipping existing files:

unrar e -o- archive.rar

Method 2: Piping "No" via the Command Line

If you are encountering non-overwrite prompts or need to feed a literal "no" response to every interactive question the utility asks, use the Unix yes command. By passing the character n to the yes command, you supply an infinite stream of "no" responses to unrar.

yes n | unrar x archive.rar

This ensures that whenever unrar halts execution to wait for user input from stdin, it automatically receives n and continues without manual intervention.

Method 3: Redirecting from /dev/null

Another method to deny interactive confirmations is redirecting standard input from /dev/null. When unrar requests confirmation, it encounters an immediate end-of-file (EOF) condition and falls back to aborting or skipping the prompted action.

unrar x archive.rar < /dev/null

For standard automation scripts and file operations, combining the -o- flag with background execution remains the cleanest and most reliable approach.