示例：

[root@node1 network-scripts]# cd ~
[root@node1 ~]# 

{}： 可承載一個以逗號分隔的路徑列表，並能夠將其展開為多個路徑

示例： 在/tmp創建以下目錄，a_c，a_d，b_c，b_d

[root@node1 ~]# mkdir -v {a,b}_{c,d}
mkdir: created directory ‘a_c’
mkdir: created directory ‘a_d’
mkdir: created directory ‘b_c’
mkdir: created directory ‘b_d’
 

　
示例： 在/tmp/mylinux下創建目錄結構

[root@node1 ~]# mkdir -pv /tmp/mylinux/{bin,etc/sysconfig/network-scripts,sbin,usr/{bin,lib,lib64,local/{bin,etc,lib,sbin},sbin},var/{cache,log,run}}
mkdir: created directory ‘/tmp/mylinux’
mkdir: created directory ‘/tmp/mylinux/bin’
mkdir: created directory ‘/tmp/mylinux/etc’
mkdir: created directory ‘/tmp/mylinux/etc/sysconfig’
mkdir: created directory ‘/tmp/mylinux/etc/sysconfig/network-scripts’
mkdir: created directory ‘/tmp/mylinux/sbin’
mkdir: created directory ‘/tmp/mylinux/usr’
mkdir: created directory ‘/tmp/mylinux/usr/bin’
mkdir: created directory ‘/tmp/mylinux/usr/lib’
mkdir: created directory ‘/tmp/mylinux/usr/lib64’
mkdir: created directory ‘/tmp/mylinux/usr/local’
mkdir: created directory ‘/tmp/mylinux/usr/local/bin’
mkdir: created directory ‘/tmp/mylinux/usr/local/etc’
mkdir: created directory ‘/tmp/mylinux/usr/local/lib’
mkdir: created directory ‘/tmp/mylinux/usr/local/sbin’
mkdir: created directory ‘/tmp/mylinux/usr/sbin’
mkdir: created directory ‘/tmp/mylinux/var’
mkdir: created directory ‘/tmp/mylinux/var/cache’
mkdir: created directory ‘/tmp/mylinux/var/log’
mkdir: created directory ‘/tmp/mylinux/var/run’

[root@node1 ~]# tree /tmp/mylinux/
/tmp/mylinux/
├── bin
├── etc
│?? └── sysconfig
│??     └── network-scripts
├── sbin
├── usr
│?? ├── bin
│?? ├── lib
│?? ├── lib64
│?? ├── local
│?? │?? ├── bin
│?? │?? ├── etc
│?? │?? ├── lib
│?? │?? └── sbin
│?? └── sbin
└── var
    ├── cache
    ├── log
    └── run

19 directories, 0 files
 

　
tree命令：
以樹狀結構列出目錄內容。
語法： tree [options] [directory]
選項： -L level: 指定要顯示的層級
安裝： yum -y install tree

bash的命令行展開特性