Linux command exercise: Disk Management related Exercises

Practice A

1. Write a script

1) display a menu to the user

d| D) show disk usages.

m| M) show memory usages.

s| S) show swap usages.

*) quit.

2) Display the appropriate content when the user has given the option:

Extended:

When the user chooses to complete, displays the corresponding information, does not exit, but lets the user select again, again

Displays the appropriate content, except that the user uses quit.

#!/bin/bash

#program:

#练习磁盘管理相关脚本编写

#history Donggen 2016-11-03-10:19

Path=http://www.11.qixoo.com/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bash

Export PATH

Cat << EOF

d| D) show disk usages.

m| M) show memory usages.

s| S) show swap usages.

*) quit.

Eof

Read-p "Your Choice:" Choice

while [$CHOICE! = "Quit"]; Do

Case $CHOICE in

d| D

DF-PH;;

m| M

Free-m;;

s| S

free-m | grep ' Swap ';;

*)

echo "Unknown ...";;

Esac

Read-p "Again,your Choice:" Choice

Done

[test]#./showsystem.sh

d| D) show disk usages.

m| M) show memory usages.

s| S) show swap usages.

*) quit.

Your choice:d

Filesystem Size used Avail use% mounted on

/dev/sda2 4.9G 1.5G 3.1G 33%/

Tmpfs 947M 0 947M 0%/dev/shm

/DEV/SDA1 2.0G 61M 1.8G 4%/boot

/dev/sda3 3.9G 73M 3.6G 2%/Home

/dev/sda7 2.0G 35M 1.8G 2%/tmp

/dev/sda5 2.9G 1.7G 1.2G 59%/usr

Again,your choice:d

Filesystem Size used Avail use% mounted on

/dev/sda2 4.9G 1.5G 3.1G 33%/

Tmpfs 947M 0 947M 0%/dev/shm

/DEV/SDA1 2.0G 61M 1.8G 4%/boot

/dev/sda3 3.9G 73M 3.6G 2%/Home

/dev/sda7 2.0G 35M 1.8G 2%/tmp

/dev/sda5 2.9G 1.7G 1.2G 59%/usr

Again,your choice:s

swap:1999 0 1999

Again,your choice:n

Unknown.

Again,your choice:m

Total used free shared buffers Cached

mem:1893 181 1711 0 42 62

-/+ buffers/cache:76 1816

swap:1999 0 1999

Again,your Choice:quit

[test]#

Linux command exercise: Disk Management related Exercises