Switch and Router Basic Configuration on Cisco Part 1

I think basically people just do cisco router configuration without understanding the basic configuration, and cause network connection error or destination host unreachable too much.
for this, i will give tutorial basic configuration cisco router and switch.
follows below configuration cisco router and swicth:

Exec Mode
Router >
Router >?
Router >enable
Router#?
Router#disable
Router > ena
Router(config)#?

This above command stand for executive command(EXEC). the command is for access user after each command input, EXEC will validate and run the command.

Next

Show Command
Router#show
Router#show version
Router#sh flash
Router#sh start ....................... show startup-config
Router#sh run ......................... show running-config
Router#sh int ......................... show interface
Router#sh controllers serial 0
Router#sh clock
Router#sh cdp neighbors
Router#sh cdp neighbors detail
Router#sh vlan
Router#sh int trunk

above command a few command for show on cisco router.

Change Hostname
Router#conf t
Router(config)#hostname CHICAGO
CHICAGO(config)#

Setting Password
Router#conf t
Router(config)#enable password gotcha
Router(config)#enable secret diy
Router(config)#service password-encryption

Remote Telnet Access
Router#conf t
Router(config)#line vty 0 4
Router(config-line)#password cisco
Router(config-line)#login
Banner MOTD (Message Of The Day)
Router(config)#banner motd z
Enter the text followed by the 'z' to finish

the above configuration is still much unfinished, because i have been sleepy tomorrow i will continue to part 2.