PS1='[\u@192.168.199.158 \W]\$ '
Last login: Sat Jan 24 08:06:24 2015 from 192.168.192.84

clear;echo -e '\033[32mLogin 192.168.199.158 done. Enjoy it.\033[0m'
[halcyon@localhost ~]$ PS1='[\u@192.168.199.158 \W]\$ '
[halcyon@192.168.199.158 ~]$ clear;echo -e '\033[32mLogin 192.168.199.158 done. Enjoy it.\033[0m'
[H[J[32mLogin 192.168.199.158 done. Enjoy it.[0m
[halcyon@192.168.199.158 ~]$ ll
total 0
[halcyon@192.168.199.158 ~]$ ll
total 0
[halcyon@192.168.199.158 ~]$ ifconfig
eth0      Link encap:Ethernet  HWaddr 08:00:27:AE:97:4F  
          inet addr:10.0.2.15  Bcast:10.0.2.255  Mask:255.255.255.0
          inet6 addr: fe80::a00:27ff:feae:974f/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:584 errors:0 dropped:0 overruns:0 frame:0
          TX packets:384 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:61072 (59.6 KiB)  TX bytes:50796 (49.6 KiB)

eth1      Link encap:Ethernet  HWaddr 08:00:27:B6:17:22  
          inet addr:192.168.199.158  Bcast:192.168.199.255  Mask:255.255.255.0
          inet6 addr: fe80::a00:27ff:feb6:1722/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:629 errors:0 dropped:0 overruns:0 frame:0
          TX packets:67 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:41737 (40.7 KiB)  TX bytes:8573 (8.3 KiB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

[halcyon@192.168.199.158 ~]$ [H[J[halcyon@192.168.199.158 ~]$ python
Python 2.6.6 (r266:84292, Nov 22 2013, 12:11:10) 
[GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import os
>>> os.system[K[K[K[K[K[Kkill()1)1)1)1)1),) )9)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
OSError: [Errno 3] No such process
>>> 