[rso@localhost log]$ cat /etc/issue CentOS release 6.3 (Final) Kernel \r on an \m [rso@localhost log]$ file /bin/ls /bin/sh /var/log/messages /dev/sda /dev/tty11 /tmp /tmp/test.pl /tmp/hoge /bin/ls: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped /bin/sh: symbolic link to `bash' /var/log/messages: ASCII English text /dev/sd