yes − output a string repeatedly until killed
Repeatedly output a line with all specified STRING(s), or ’y’.
display this help and exit
output version information and exit
Written by David MacKenzie.
© 2016 Free Software Foundation, Inc. License GPLv3+:
GNU GPL version 3 or later
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
or available locally via: info '(coreutils) yes invocation'