What command will search for physical defects on a hard drive and will mark these defects so that they are no longer used?
Which command will prevent the service ldap from starting on a Debian system in all runlevels, forcing the removal of all symlinks in /etc/rcX.d?
Which chkconfig command will display whether or not the service ldap is configured to start in each runlevel?
Which program lists information about files opened by processes and produces output that can be parsed by other programs?