Root password for system maintenance (control-d to bypass): single-user privilege assigned to /dev/console. Entering System Maintenance Mode
Feb XX XX:XX:XX su: 'su root' succeeded for root on /dev/console su: No shell /usr/bin/csh. Trying fallback shell /sbin/sh. -sh: /bin/i386: not found -sh: /usr/sbin/quota: not found -sh: /bin/cat: not found -sh: /bin/mail: not found # echo * ← ls はできない。w