Gnu/coreutils/yes-invocation
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15.3 yes: Print a string until interrupted
yes prints the command line arguments, separated by spaces and
followed by a newline, forever until it is killed. If no arguments are
given, it prints ‘y’ followed by a newline forever until killed.
Upon a write error, yes exits with status ‘1’.
The only options are a lone --help or --version.
To output an argument that begins with
‘-’, precede it with --, e.g., ‘yes -- --help’.
See Common options.
