| 1、创建一个10G分区，并格式为ext4文件系统； (1) 要求其block大小为2048, 预留空间百分比为2, 卷标为MYDATA, 默认挂载属性包含acl； (2) 挂载至/data/mydata目录，要求挂载时禁止程序自动运行，且不更新文件的访问时间戳； 1.创建分区/dev/sdb1,容量为10G
[root@localhost ~]# fdisk /dev/sdb
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel with disk identifier 0xa5b8f2f4.
Changes will remain in memory only, until you decide to write them.
After that, of course, the previous content won't be recoverable.
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
switch off the mode (command 'c') and change display units to
sectors (command 'u').
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-1435, default 1):
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-1435, default 1435): +10G
Command (m for help): w
2.查看创建的分区
[root@localhost ~]# fdisk -l /dev/sdb
Disk /dev/sdb: 11.8 GB, 11811160064 bytes
255 heads, 63 sectors/track, 1435 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xa5b8f2f4
Device Boot Start End Blocks Id System
/dev/sdb1 1 1306 10490413+ 83 Linux
3.格式化
[root@localhost ~]# mke2fs -b 2048 -m 2 -t ext4 -L MYDATA /dev/sdb1
4.修改分区属性
[root@localhost ~]# tune2fs -o acl /dev/sdb1
tune2fs 1.41.12 (17-May-2010)
5.查看分区属性
[root@localhost ~]# dumpe2fs -h /dev/sdb1
dumpe2fs 1.41.12 (17-May-2010)
Filesystem volume name: MYDATA
Last mounted on: <not available>
Filesystem UUID: d97d8ba2-ebed-413b-a4c7-a9a0a4986fa1
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype extent flex_bg sparse_super huge_file uninit_bg dir_nlink extra_isize
Filesystem flags: signed_directory_hash
Default mount options: acl
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 657408
Block count: 5245206
Reserved block count: 104904
Free blocks: 5123382
Free inodes: 657397
First block: 0
Block size: 2048
Fragment size: 2048
Reserved GDT blocks: 512
Blocks per group: 16384
Fragments per group: 16384
Inodes per group: 2048
Inode blocks per group: 256
Flex block group size: 16
Filesystem created: Wed Sep 21 17:33:07 2016
Last mount time: n/a
Last write time: Wed Sep 21 17:34:14 2016
Mount count: 0
Maximum mount count: 39
Last checked: Wed Sep 21 17:33:07 2016
Check interval: 15552000 (6 months)
Next check after: Mon Mar 20 17:33:07 2017
Lifetime writes: 226 MB
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 256
Required extra isize: 28
Desired extra isize: 28
Journal inode: 8
Default directory hash: half_md4
Directory Hash Seed: 043a3a0c-ac3a-4728-8bdf-e0347fa690da
Journal backup: inode blocks
Journal features: (none)
Journal size: 64M
Journal length: 32768
Journal sequence: 0x00000001
Journal start: 0
4.挂载
[root@localhost ~]# mount -o noexec,nodiratime /dev/sdb1 /data/mydata/
5.设置开机自动挂载
[root@localhost ~]# vim /etc/fstab
#
# /etc/fstab
# Created by anaconda on Mon Aug 22 18:25:35 2016
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/VolGroup-lv_root / ext4 defaults 1 1
UUID=e36e7a7c-97a5-4712-ac29-7973c98c847c /boot ext4 defaults 1 2
/dev/mapper/VolGroup-lv_swap swap swap defaults 0 0
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
/dev/sdb1 /mnt ext4 defaults 0 0
2、创建一个大小为1G的swap分区，并创建好文件系统，并启用之； 1.查看当前swap分区大小，目前为3G [root@bogon ~]# free -m total used free shared buffers cached Mem: 1862 303 1559 0 19 105 -/+ buffers/cache: 178 1683 Swap: 3071 0 3071 2.创建swap类型的分区/dev/sdb1 [root@bogon ~]# fdisk -l /dev/sdb Disk /dev/sdb: 11.8 GB, 11811160064 bytes 255 heads, 63 sectors/track, 1435 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xa5b8f2f4 Device Boot Start End Blocks Id System /dev/sdb1 1 132 1060258+ 82 Linux swap / Solaris 3.转换为交换分区 [root@bogon ~]# mkswap /dev/sdb1 Setting up swapspace version 1, size = 1060252 KiB no label, UUID=898c07c8-5460-44d5-9ae9-049568b339bc 4.启动交换分区 [root@bogon ~]# swapon /dev/sdb1 5.再次查看交换分区。变成了4G [root@bogon ~]# free -m total used free shared buffers cached Mem: 1862 304 1558 0 19 105 -/+ buffers/cache: 179 1683 Swap: 4107 0 4107 3、写一个脚本 (1)、获取并列出当前系统上的所有磁盘设备； (2)、显示每个磁盘设备上每个分区相关的空间使用信息； #!/bin/bash
#show dev info
for dev in $(fdisk -l|grep -o "^/dev/[[:alnum:]]\{3,\}");do
echo $dev
echo -e "$(df -h $dev)\n"
done
4、总结RAID的各个级别及其组合方式和性能的不同；
5、创建一个大小为10G的RAID1，要求有一个空闲盘，而且CHUNK大小为128k; 1.创建2个raid类型的分区，/dev/sdc1,/dev/sdd1,/dev/sde1,创建raid1 [root@bogon ~]# mdadm -C -l 1 -c 128 -n 2 -x 1 /dev/sdc1 /dev/sdd1 /dev/sde1 mdadm: device /dev/sdc1 exists but is not an md array. [root@bogon ~]# mdadm -C /dev/md0 -l 1 -c 128 -n 2 -x 1 /dev/sdc1 /dev/sdd1 /dev/sde1 mdadm: Note: this array has metadata at the start and may not be suitable as a boot device. If you plan to store '/boot' on this device please ensure that your boot-loader understands md/v1.x metadata, or use --metadata=0.90 Continue creating array? y mdadm: Defaulting to version 1.2 metadata mdadm: array /dev/md0 started. 2.查看raid信息 [root@bogon ~]# mdadm -D /dev/md0 /dev/md0: Version : 1.2 Creation Time : Mon Sep 26 20:03:48 2016 Raid Level : raid1 Array Size : 10482112 (10.00 GiB 10.73 GB) Used Dev Size : 10482112 (10.00 GiB 10.73 GB) Raid Devices : 2 Total Devices : 3 Persistence : Superblock is persistent Update Time : Mon Sep 26 20:04:21 2016 State : clean, resyncing Active Devices : 2 Working Devices : 3 Failed Devices : 0 Spare Devices : 1 Resync Status : 28% complete Name : bogon:0 (local to host bogon) UUID : c63aeb60:7f098351:3ed32a55:e3caca40 Events : 4 Number Major Minor RaidDevice State 0 8 33 0 active sync /dev/sdc1 1 8 49 1 active sync /dev/sdd1 2 8 65 - spare /dev/sde 6、创建一个大小为4G的RAID5设备，chunk大小为256k，格式化ext4文件系统，要求可开机自动挂载至/backup目录，而且不更新访问时间戳，且支持acl功能； 1.创建3个raid类型的分区，/dev/sdd1,/dev/sdd2,/dev/sde1,创建raid5 [root@bogon ~]# mdadm -C /dev/md0 -l 5 -c 256 -n 3 /dev/sdd1 /dev/sdd2 /dev/sde1 2.格式化为ext4 [root@bogon ~]# mke2fs -t ext4 /dev/md0 mke2fs 1.41.12 (17-May-2010) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) Stride=64 blocks, Stripe width=128 blocks 525200 inodes, 2098304 blocks 104915 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=2151677952 65 block groups 32768 blocks per group, 32768 fragments per group 8080 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632 Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 29 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. 3.设置开机自动挂载 [root@bogon ~]# vim /etc/fstab # # /etc/fstab # Created by anaconda on Mon Aug 22 18:25:35 2016 # # Accessible filesystems, by reference, are maintained under '/dev/disk' # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info # /dev/mapper/VolGroup-lv_root / ext4 defaults 1 1 UUID=e36e7a7c-97a5-4712-ac29-7973c98c847c /boot ext4 defaults 1 2 /dev/mapper/VolGroup-lv_swap swap swap defaults 0 0 tmpfs /dev/shm tmpfs defaults 0 0 devpts /dev/pts devpts gid=5,mode=620 0 0 sysfs /sys sysfs defaults 0 0 proc /proc proc defaults 0 0 /dev/md0 /backup ext4 defaults,nodiratime,acl 0 0 7、写一个脚本 (3) 总结说明本次共为几个文件统计了其行数； #!/bin/bash #sum file line if [ $# -lt 2 ];then echo "please input in least two file:" exit 2 else for i in $@;do if [ -e $i ] && [ -f $i ];then echo " `wc -l $i`" else echo "no such file or this is diretory" fi done fi echo " the file number is:" $# 8、写一个脚本 (3) 总结说明共创建了几个用户； !/bin/bash if [ $# -lt 2 ]; then echo "At least two username." exit 2 fi declare -x num=0; for i in $@;do if grep "^$i\>" /etc/passwd &> /dev/null; then echo "User $i exists" else useradd $i let num++ echo $i | passwd --stdin $i &> /dev/null echo "Add user $i finished." fi done echo "Adding user number is:"$nu 9、写一个脚本，新建20个用户，visitor1-visitor20；计算他们的ID之和； #!/bin/bash
for user in {1..20};do
useradd visitor$user
a=`id -u visitor$user`
sum=$[$sum+$a]
done
echo $sum
10、写一脚本，分别统计/etc/rc.d/rc.sysinit、/etc/rc.d/init.d/functions和/etc/fstab文件中以#号开头的行数之和，以及总的空白行数； #!/bin/bash for file in /etc/rc.d/rc.sysinit /etc/rc.d/init.d/functions /etc/fstab;do a=$(grep "^#" $file |wc -l) b=$(grep "^$" $file |wc -l) echo "$file $a $b" done 11、写一个脚本，显示当前系统上所有默认shell为bash的用户的用户名、UID以及此类所有用户的UID之和； #!/bin/bash a=`grep "\<bash\>$" /etc/passwd |cut -d: -f3` b=`grep "\<bash\>$" /etc/passwd |cut -d: -f 1,3` echo -e "$b\n" for i in $a;do sum=$[$sum+$i] done echo "uid sum is:"$sum 12、写一个脚本，显示当前系统上所有，拥有附加组的用户的用户名；并说明共有多少个此类用户； #!/bin/bash declare i=0 for user in $(cat /etc/passwd |cut -d: -f 1);do id $user |grep "," if [ $? -eq 0 ];then echo "$user" let i++ fi done echo "the users is:" $i 13、创建一个由至少两个物理卷组成的大小为20G的卷组；要求，PE大小为8M；而在卷组中创建一个大小为5G的逻辑卷mylv1，格式化为ext4文件系统，开机自动挂载至/users目录，支持acl； 1.创建分区/dev/sdb1,/dev/sdb2
[root@MiWiFi-R1CM-srv ~]# fdisk -l /dev/sdb
Disk /dev/sdb: 26.8 GB, 26843545600 bytes
255 heads, 63 sectors/track, 3263 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x7e26fae5
Device Boot Start End Blocks Id System
/dev/sdb1 1 1306 10490413+ 83 Linux
/dev/sdb2 1307 2612 10490445 83 Linux
[root@MiWiFi-R1CM-srv ~]#
2.创建pv
[root@MiWiFi-R1CM-srv ~]# pvcreate /dev/sdb{1,2}
dev_is_mpath: failed to get device for 8:17
Physical volume "/dev/sdb1" successfully created
dev_is_mpath: failed to get device for 8:18
Physical volume "/dev/sdb2" successfully create
3.创建卷组vg0,pe大小为8m
[root@MiWiFi-R1CM-srv ~]# vgcreate -s 8 vg0 /dev/sdb1 /dev/sdb2
Volume group "vg0" successfully created
4.查看vg信息
[root@MiWiFi-R1CM-srv ~]# vgdisplay
--- Volume group ---
VG Name vg0
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 1
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 0
Open LV 0
Max PV 0
Cur PV 2
Act PV 2
VG Size 20.00 GiB
PE Size 8.00 MiB
Total PE 2560
Alloc PE / Size 0 / 0
Free PE / Size 2560 / 20.00 GiB
VG UUID FvNYvj-86jM-1LJz-pyph-2vfv-LuGN-eMs3pI
5.创建lv逻辑卷mylv1，大小为5G
[root@MiWiFi-R1CM-srv ~]# lvcreate -L 5g -n mylv1 /dev/vg0
Logical volume "mylv1" created
[root@MiWiFi-R1CM-srv ~]# lvdisplay
--- Logical volume ---
LV Path /dev/vg0/mylv1
LV Name mylv1
VG Name vg0
LV UUID 8XmMvG-3Psh-3GnR-H9MD-ZwVh-smGH-MEr3mW
LV Write Access read/write
LV Creation host, time MiWiFi-R1CM-srv, 2016-09-26 00:20:53 +0800
LV Status available
# open 0
LV Size 5.00 GiB
Current LE 640
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0
6.格式化为ext4格式
[root@MiWiFi-R1CM-srv ~]# mke2fs -t ext4 /dev/vg0//mylv1
mke2fs 1.41.12 (17-May-2010)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
327680 inodes, 1310720 blocks
65536 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=1342177280
40 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 24 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
7.配置开机自动挂载
# /etc/fstab
# Created by anaconda on Sun Sep 25 20:18:18 2016
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=f98e4337-9bbe-4d63-914b-1265dd7a9ddd / ext4 defaults 1 1
UUID=dc2e05ac-e97a-4369-83b6-a06cd6c32c3d swap swap defaults 0 0
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
/dev/vg0/mylv1 /users ext4 defaults,acl 0 0
14、新建用户magedu；其家目录为/users/magedu，而后su切换至此用户，复制多个文件至家目录； [root@MiWiFi-R1CM-srv users]# useradd -d /users/magedu magedu [root@MiWiFi-R1CM-srv users]# su - magedu [magedu@MiWiFi-R1CM-srv ~]$ cp /etc/init init/ init.d/ inittab [magedu@MiWiFi-R1CM-srv ~]$ cp /etc/init init/ init.d/ inittab [magedu@MiWiFi-R1CM-srv ~]$ cp -r /etc/init.d/* /users/magedu/ [magedu@MiWiFi-R1CM-srv ~]$ cd /users/magedu/ [magedu@MiWiFi-R1CM-srv ~]$ ls abrt-ccpp crond irqbalance nfs rngd snmptrapd abrtd cups kdump nfslock rpcbind spice-vdagentd abrt-oops dnsmasq killall ntpd rpcgssd sshd acpid firstboot lvm2-lvmetad ntpdate rpcidmapd sssd atd functions lvm2-monitor oddjobd rpcsvcgssd sysstat auditd haldaemon mdmonitor portreserve rsyslog udev-post autofs halt messagebus postfix sandbox wdaemon blk-availability htcacheclean netconsole psacct saslauthd winbind bluetooth httpd netfs quota_nld single wpa_supplicant certmonger ip6tables network rdisc smartd ypbind cpuspeed iptables NetworkManager restorecond snmpd 15、扩展mylv1至9G，确保扩展完成后原有数据完全可用； [root@MiWiFi-R1CM-srv ~]# lvextend -L +4G /dev/vg0/mylv1 Extending logical volume mylv1 to 9.00 GiB Logical volume mylv1 successfully resized [root@MiWiFi-R1CM-srv ~]# cd /users/magedu/ [root@MiWiFi-R1CM-srv magedu]# resize2fs /dev/vg0/mylv1 resize2fs 1.41.12 (17-May-2010) Filesystem at /dev/vg0/mylv1 is mounted on /users; on-line resizing required old desc_blocks = 1, new_desc_blocks = 1 Performing an on-line resize of /dev/vg0/mylv1 to 2359296 (4k) blocks. ^[[CThe filesystem on /dev/vg0/mylv1 is now 2359296 blocks long. [root@MiWiFi-R1CM-srv magedu]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda2 17G 3.3G 13G 21% / tmpfs 936M 72K 936M 1% /dev/shm /dev/mapper/vg0-mylv1 8.9G 140M 8.3G 2% /users [root@MiWiFi-R1CM-srv magedu]# ls abrt-ccpp crond irqbalance nfs rngd snmptrapd abrtd cups kdump nfslock rpcbind spice-vdagentd abrt-oops dnsmasq killall ntpd rpcgssd sshd acpid firstboot lvm2-lvmetad ntpdate rpcidmapd sssd atd functions lvm2-monitor oddjobd rpcsvcgssd sysstat auditd haldaemon mdmonitor portreserve rsyslog udev-post autofs halt messagebus postfix sandbox wdaemon blk-availability htcacheclean netconsole psacct saslauthd winbind bluetooth httpd netfs quota_nld single wpa_supplicant certmonger ip6tables network rdisc smartd ypbind cpuspeed iptables NetworkManager restorecond snmpd 16、缩减mylv1至7G，确保缩减完成后原有数据完全可用； 1.卸载 [root@MiWiFi-R1CM-srv ~]# umount /dev/vg0/mylv1 2.检查 [root@MiWiFi-R1CM-srv ~]# e2fsck -f /dev/vg0/mylv1 e2fsck 1.41.12 (17-May-2010) Pass 1: Checking inodes, blocks, and sizes Pass 2: Checking directory structure Pass 3: Checking directory connectivity Pass 4: Checking reference counts Pass 5: Checking group summary information /dev/vg0/mylv1: 85/589824 files (0.0% non-contiguous), 72765/2359296 blocks 3.重设大小 [root@MiWiFi-R1CM-srv ~]# resize2fs /dev/vg0/mylv1 7G resize2fs 1.41.12 (17-May-2010) Resizing the filesystem on /dev/vg0/mylv1 to 1835008 (4k) blocks. The filesystem on /dev/vg0/mylv1 is now 1835008 blocks long. 4.减小逻辑卷大小 [root@MiWiFi-R1CM-srv ~]# lvcreate -L 7G /dev/vg0/mylv1 Volume group name expected (no slash) Run `lvcreate --help' for more information. [root@MiWiFi-R1CM-srv ~]# lvreduce -L 7G /dev/vg0/mylv1 WARNING: Reducing active logical volume to 7.00 GiB THIS MAY DESTROY YOUR DATA (filesystem etc.) Do you really want to reduce mylv1? [y/n]: y Reducing logical volume mylv1 to 7.00 GiB Logical volume mylv1 successfully resized 5.重新挂载，并查看大小 [root@MiWiFi-R1CM-srv ~]# mount -a [root@MiWiFi-R1CM-srv ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda2 17G 3.3G 13G 21% / tmpfs 936M 72K 936M 1% /dev/shm /dev/mapper/vg0-mylv1 6.9G 140M 6.5G 3% /users 17、对mylv1创建快照，并通过备份数据；要求保留原有的属主属组等信息； 1.创建快照 [root@MiWiFi-R1CM-srv ~]# lvcreate -L 1G -p r -s -n sn_mylv1 /dev/vg0/mylv1 Logical volume "sn_mylv1" created 2.将快照挂载至/backup [root@MiWiFi-R1CM-srv ~]# mount /dev/vg0/sn_mylv1 /back/ mount: block device /dev/mapper/vg0-sn_mylv1 is write-protected, mounting read-only [root@MiWiFi-R1CM-srv ~]# cd /back/ [root@MiWiFi-R1CM-srv back]# ls lost+found magedu [root@MiWiFi-R1CM-srv back]# cd magedu/ [root@MiWiFi-R1CM-srv magedu]# ls abrt-ccpp crond irqbalance nfs rngd snmptrapd abrtd cups kdump nfslock rpcbind spice-vdagentd abrt-oops dnsmasq killall ntpd rpcgssd sshd acpid firstboot lvm2-lvmetad ntpdate rpcidmapd sssd atd functions lvm2-monitor oddjobd rpcsvcgssd sysstat auditd haldaemon mdmonitor portreserve rsyslog udev-post autofs halt messagebus postfix sandbox wdaemon blk-availability htcacheclean netconsole psacct saslauthd winbind bluetooth httpd netfs quota_nld single wpa_supplicant certmonger ip6tables network rdisc smartd ypbind cpuspeed iptables NetworkManager restorecond snmpd [root@MiWiFi-R1CM-srv magedu]# mkdir /backup2 [root@MiWiFi-R1CM-srv magedu]# ls abrt-ccpp crond irqbalance nfs rngd snmptrapd abrtd cups kdump nfslock rpcbind spice-vdagentd abrt-oops dnsmasq killall ntpd rpcgssd sshd acpid firstboot lvm2-lvmetad ntpdate rpcidmapd sssd atd functions lvm2-monitor oddjobd rpcsvcgssd sysstat auditd haldaemon mdmonitor portreserve rsyslog udev-post autofs halt messagebus postfix sandbox wdaemon blk-availability htcacheclean netconsole psacct saslauthd winbind bluetooth httpd netfs quota_nld single wpa_supplicant certmonger ip6tables network rdisc smartd ypbind cpuspeed iptables NetworkManager restorecond snmpd [root@MiWiFi-R1CM-srv magedu]# cd .. [root@MiWiFi-R1CM-srv back]# ll total 20 drwx------. 2 root root 16384 Sep 26 00:23 lost+found drwx------. 4 magedu magedu 4096 Sep 26 00:40 magedu 3.将快照的文件复制至/backup2 [root@MiWiFi-R1CM-srv back]# cp -a magedu/ /backup2/ [root@MiWiFi-R1CM-srv back]# cd /backup2 [root@MiWiFi-R1CM-srv backup2]# ls magedu 4.查看权限，没有改变 [root@MiWiFi-R1CM-srv backup2]# ll total 4 drwx------. 4 magedu magedu 4096 Sep 26 00:40 magedu [root@MiWiFi-R1CM-srv backup2]# cd magedu/ [root@MiWiFi-R1CM-srv magedu]# ls abrt-ccpp crond irqbalance nfs rngd snmptrapd abrtd cups kdump nfslock rpcbind spice-vdagentd abrt-oops dnsmasq killall ntpd rpcgssd sshd acpid firstboot lvm2-lvmetad ntpdate rpcidmapd sssd atd functions lvm2-monitor oddjobd rpcsvcgssd sysstat auditd haldaemon mdmonitor portreserve rsyslog udev-post autofs halt messagebus postfix sandbox wdaemon blk-availability htcacheclean netconsole psacct saslauthd winbind bluetooth httpd netfs quota_nld single wpa_supplicant certmonger ip6tables network rdisc smartd ypbind cpuspeed iptables NetworkManager restorecond snmpd |
原创文章，作者：a295053193，如若转载，请注明出处：http://www.178linux.com/48115
评论列表（1条）
这是我看到脚本写的看着最舒服的作业，而且作业整个过程也是非常详细的，加油。