bash特性之命令行展開功能應用示例

bash特性之命令行展開功能應用示例

• 1.創建/tmp的目錄下:a_c,a_d,b_c,b_d

  • 創建命令：mkdir -pv /tmp/{a,b}_{c_d}
  • 操作：

    [root@localhost tmp]# mkdir -pv /tmp/{a,b}_{c,d}
    mkdir: created directory ‘/tmp/a_c’
    mkdir: created directory ‘/tmp/a_d’
    mkdir: created directory ‘/tmp/b_c’
    mkdir: created directory ‘/tmp/b_d’

  • 驗證：

    [root@localhost tmp]# tree /tmp/
    /tmp/
    ├── a_c
    ├── a_d
    ├── b_c
    ├── b_d

• 2.在/tmp/mylinux目錄下的創建根文件系統的目錄、boot目錄等

  • 創建命令：mkdir -pv /tmp/mylinux/{bin,boot/grub,dev,etc/{rc.d/init.d,sysconfig/network-scripts},lib/modules,lib64,proc,sbin,sys,tmp,usr/local/{bin,sbin},var/{lock,log,run}}
  • 操作：

    [root@localhost tmp]# mkdir -pv /tmp/mylinux/{bin,boot/grub,dev,etc/{rc.d/init.d,sysconfig/network-scripts},lib/modules,lib64,proc,sbin,sys,tmp,usr/local/{bin,sbin},var/{lock,log,run}}
    mkdir: created directory ‘/tmp/mylinux’
    mkdir: created directory ‘/tmp/mylinux/bin’
    mkdir: created directory ‘/tmp/mylinux/boot’
    mkdir: created directory ‘/tmp/mylinux/boot/grub’
    mkdir: created directory ‘/tmp/mylinux/dev’
    mkdir: created directory ‘/tmp/mylinux/etc’
    mkdir: created directory ‘/tmp/mylinux/etc/rc.d’
    mkdir: created directory ‘/tmp/mylinux/etc/rc.d/init.d’
    mkdir: created directory ‘/tmp/mylinux/etc/sysconfig’
    mkdir: created directory ‘/tmp/mylinux/etc/sysconfig/network-scripts’
    mkdir: created directory ‘/tmp/mylinux/lib’
    mkdir: created directory ‘/tmp/mylinux/lib/modules’
    mkdir: created directory ‘/tmp/mylinux/lib64’
    mkdir: created directory ‘/tmp/mylinux/proc’
    mkdir: created directory ‘/tmp/mylinux/sbin’
    mkdir: created directory ‘/tmp/mylinux/sys’
    mkdir: created directory ‘/tmp/mylinux/tmp’
    mkdir: created directory ‘/tmp/mylinux/usr’
    mkdir: created directory ‘/tmp/mylinux/usr/local’
    mkdir: created directory ‘/tmp/mylinux/usr/local/bin’
    mkdir: created directory ‘/tmp/mylinux/usr/local/sbin’
    mkdir: created directory ‘/tmp/mylinux/var’
    mkdir: created directory ‘/tmp/mylinux/var/lock’
    mkdir: created directory ‘/tmp/mylinux/var/log’
    mkdir: created directory ‘/tmp/mylinux/var/run’

  • 驗證：

    [root@localhost tmp]# tree /tmp/mylinux/
    /tmp/mylinux/
    ├── bin
    ├── boot
    │   └── grub
    ├── dev
    ├── etc
    │   ├── rc.d
    │   │   └── init.d
    │   └── sysconfig
    │       └── network-scripts
    ├── lib
    │   └── modules
    ├── lib64
    ├── proc
    ├── sbin
    ├── sys
    ├── tmp
    ├── usr
    │   └── local
    │       ├── bin
    │       └── sbin
    └── var
    ├── lock
    ├── log
    └── run