命令行扩展功能

1.创建/tmp目录下的：a_c，a_b，b_c，b_d

[[email protected] tmp]# touch {a,b}_{c,d}
[[email protected] tmp]# ls
a_c a_d b_c b_d

2.创建/tmp/mylinux目录下的

myliunx/

├── 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 /tmp/myliunx         cd /tmp/myliunx

mkdir bin boot dev etc lib lib64 proc sbin sys tmp usr var lock log ru

mkdir /tmp/myliunx/boot/grub     mkdir /tmp/myliunx/etc/rc.d/init.d

mkdir /tmp/myliunx/etc/sysconfig/network-scripts

mkdir /tmp/myliunx/lib/modules    mkdir /tmp/myliunx/usr/local/{bin,sbin}

或    mkdir -p /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}