Linux dd命令

Linux dd命令 备份文件 [[email protected] ~]# dd if=/etc/passwd of=/tmp/passwd.bak 1+1 records in 1+1 records out 798 bytes (798 B) copied, 0.00270593 s, 295 kB/s [[email protected] ~]# ll /etc/passwd /tmp/passwd.bak -rw-r–r–. 1 root root 798 Jun 9 02:28 /etc/passwd -rw-r–r–. 1 root root 798 Aug 8 10:18 /tmp/passw…