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Amin's questions

Martin Hope
Amin
Asked: 2020-01-10 05:17:02 +0800 CST
  • 1

我在 fdisk 中选择了一个要删除的分区，但是正如您看到的第三个交换分区也被删除了，为什么？

Device     Boot    Start      End  Sectors Size Id Type
/dev/sda1  *        2048 12584959 12582912   6G 83 Linux
/dev/sda2       12587006 20969471  8382466   4G  5 Extended
/dev/sda5       12587008 20969471  8382464   4G 82 Linux swap / Solaris

Command (m for help): d
Partition number (1,2,5, default 5): 2

Partition 2 has been deleted.

Command (m for help): p
Disk /dev/sda: 10 GiB, 10737418240 bytes, 20971520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xd2dfe316

Device     Boot Start      End  Sectors Size Id Type
/dev/sda1  *     2048 12584959 12582912   6G 83 Linux

Command (m for help):
partitioning fdisk
Martin Hope
Amin
Asked: 2019-12-02 05:06:23 +0800 CST
  • 0

使用sed时我得到他的错误：

sed 's/H/q' myout00
sed: -e expression #1, char 5: unterminated `s' command

cat myout00:
Fname   Lname   Net Algo    OS  NSec    Sof
Sadegh  SamanI  15  20  14  19  15
Arash   Jami    12  20  20  18  12
Hamed   Sadeghi 13  19  16  17  13
NIma    Ehsani  20  20  17  18  20
sed
Martin Hope
Amin
Asked: 2019-08-27 04:29:19 +0800 CST
  • 1

没有唯一性：

amin@ubuntu:~/Desktop$ cut -f 1 info.log | tail -n +2 | head -n -1 | sort
Abol
Abol 
Ahmad
Akbar
Arash
Hadi 
Hamed
Mahmood
Maryam
Maryam
Mohsen
NIma
Rasool
Sadegh
Sepide
Sepide

使用独特的：

amin@ubuntu:~/Desktop$ cut -f 1 info.log | tail -n +2 | head -n -1 | sort | uniq
Abol
Abol 
Ahmad
Akbar
Arash
Hadi 
Hamed
Mahmood
Maryam
Mohsen
NIma
Rasool
Sadegh
Sepide
Sepide

如您所见，两者的结果相同，为什么？

text-processing uniq
Martin Hope
Amin
Asked: 2019-02-24 10:01:26 +0800 CST
  • 3

我是 Ubuntu 新手，有一个问题：

我在 VMware 上运行 Ubuntu 16.04。我的初始设置有一个磁盘。我添加了另外 2 个磁盘（一个 2GB 和一个 1GB）。现在我想将它们添加到 Ubuntu，我该怎么做？首先我知道我应该格式化它们，但是当我想运行 fdisk 命令时，我得到了这个错误：

Device does not contain a recognized partition table.
Created a new DOS disklabel with disk identifier 0xd5a1dff9.

Command (m for help):

这是我的磁盘信息：

  *-disk:0                
       description: SCSI Disk
       physical id: 0.0.0
       bus info: scsi@32:0.0.0
       logical name: /dev/sda
       size: 10GiB (10GB)
       capabilities: partitioned partitioned:dos
       configuration: logicalsectorsize=512 sectorsize=512 signature=bcc12dac
  *-disk:1
       description: SCSI Disk
       physical id: 0.1.0
       bus info: scsi@32:0.1.0
       logical name: /dev/sdb
       size: 1GiB (1073MB)
       configuration: logicalsectorsize=512 sectorsize=512
  *-disk:2
       description: SCSI Disk
       physical id: 0.2.0
       bus info: scsi@32:0.2.0
       logical name: /dev/sdc
       size: 2GiB (2147MB)
       configuration: logicalsectorsize=512 sectorsize=512
  *-cdrom
       description: DVD-RAM writer
       physical id: 0.0.0
       bus info: scsi@3:0.0.0
       logical name: /dev/cdrom
       logical name: /dev/cdrw
       logical name: /dev/dvd
       logical name: /dev/sr0
       capabilities: audio cd-r cd-rw dvd dvd-r dvd-ram
       configuration: status=open

我的问题是如何仅使用命令解决此问题？

format partitioning fdisk