Replies (52)
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@Shchvova, Sun Microsystems introduced "rm -rf " protection in Solaris 10, first released in 2005. Upon executing the command, the system now reports that the removal of is not allowed.[2] Shortly after, the same functionality was introduced into FreeBSD version of rm utility. GNU rm refuses to execute rm -rf / if the --preserve-root option is given, which has been the default since version 6.4 of GNU Core Utilities was released in 2006.