Linux常用操作集合（三）

1、lzo文件解压办法

介绍：lzo为hadoop文件格式，csv的压缩比约为30%

linux环境解压方法：
lzop -d xxx.lzo

2、Linux服务器分区设置

[root@host-47-49-36-42 ~]# lsblk
NAME   MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sr0     11:0    1 1024M  0 rom
vda    253:0    0  500G  0 disk
├─vda1 253:1    0    1G  0 part /boot
├─vda2 253:2    0  100G  0 part /
└─vda3 253:3    0   32G  0 part [SWAP]
[root@host-47-49-36-42 ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/vda2       100G  2.0G   98G   2% /
devtmpfs         32G     0   32G   0% /dev
tmpfs            32G     0   32G   0% /dev/shm
tmpfs            32G  8.7M   32G   1% /run
tmpfs            32G     0   32G   0% /sys/fs/cgroup
/dev/vda1      1014M  162M  853M  16% /boot
tmpfs           6.3G     0  6.3G   0% /run/user/0
[root@host-47-49-36-42 ~]# lsblk
NAME   MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sr0     11:0    1 1024M  0 rom
vda    253:0    0  500G  0 disk
├─vda1 253:1    0    1G  0 part /boot
├─vda2 253:2    0  100G  0 part /
└─vda3 253:3    0   32G  0 part [SWAP]
[root@host-47-49-36-42 ~]# parted /dev/vda
GNU Parted 3.1
Using /dev/vda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p
Model: Virtio Block Device (virtblk)
Disk /dev/vda: 537GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:

Number  Start   End     Size    Type     File system     Flags
 1      1049kB  1075MB  1074MB  primary  xfs             boot
 2      1075MB  108GB   107GB   primary  xfs
 3      108GB   143GB   34.4GB  primary  linux-swap(v1)

(parted) mkpart
Partition type?  primary/extended? primary
File system type?  [ext2]? xfs
Start? 144G
End? 537G
(parted) p
Model: Virtio Block Device (virtblk)
Disk /dev/vda: 537GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:

Number  Start   End     Size    Type     File system     Flags
 1      1049kB  1075MB  1074MB  primary  xfs             boot
 2      1075MB  108GB   107GB   primary  xfs
 3      108GB   143GB   34.4GB  primary  linux-swap(v1)
 4      144GB   537GB   393GB   primary

(parted) q
Information: You may need to update /etc/fstab.

[root@host-47-49-36-42 ~]# mkdir /APP
[root@host-47-49-36-42 ~]# mkfs.xfs -f /dev/vda4
meta-data=/dev/vda4              isize=512    agcount=4, agsize=23978944 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=0, sparse=0
data     =                       bsize=4096   blocks=95915776, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0 ftype=1
log      =internal log           bsize=4096   blocks=46833, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
[root@host-47-49-36-42 ~]# mount /dev/vda4 /APP
[root@host-47-49-36-42 ~]# vi /etc/fstab
[root@host-47-49-36-42 ~]# blkid
/dev/vda2: UUID="51e5b936-d1c7-4b72-a60a-726d9a136c0e" TYPE="xfs"
/dev/vda1: UUID="799f8e3e-1f16-4f64-8556-bdebe22eae81" TYPE="xfs"
/dev/vda3: UUID="4dfa261e-9aed-4d79-ac26-766138fc3f15" TYPE="swap"
/dev/vda4: UUID="c28b7d8d-9eba-4616-af9d-561f826563e6" TYPE="xfs"
[root@host-47-49-36-42 ~]# vi /etc/fstab