50 | Getting Started
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You can change the default storage location to the USB Flash (Figure 3-10). File management commands 
then apply to the USB Flash rather than the internal Flash.
Figure 3-10.  Alternative Storage Location
View the Command History
The command-history trace feature captures all commands entered by all users of the system with a time 
stamp and writes these messages to a dedicated trace log buffer. The system generates a trace message for 
each executed command. No password information is saved to the file.
To view the command-history trace, use the 
show command-history command (Figure 3-11).
Figure 3-11.  show command-history Command Example 
Upgrading and Downgrading FTOS
Note: To upgrade or downgrade FTOS, refer to the Release Notes for the version you want to load on the 
system.
FTOS#cd usbflash:
FTOS#copy running-config test
!
3998 bytes successfully copied
FTOS#dir
Directory of usbflash:
 
  1  drwx       4096   Jan 01 1980 00:00:00 +00:00 .
  2  drwx       2048   May 02 2012 07:05:06 +00:00 ..
  3 -rwx         1272 Apr 29 2011 16:15:14 +00:00 startup-config
  4 -rwx         3998 May 11 2011 23:36:12 +00:00 test
No File System Specified
File Saved to USB Flash
FTOS#show command-history
[5/18 21:58:32]: CMD-(TEL0):[enable]by admin from vty0 (10.11.68.5)
[5/18 21:58:48]: CMD-(TEL0):[configure]by admin from vty0 (10.11.68.5)
         - Repeated 1 time.
[5/18 21:58:57]: CMD-(TEL0):[interface port-channel 1]by admin from vty0 (10.11.68.5)
[5/18 21:59:9]: CMD-(TEL0):[show config]by admin from vty0 (10.11.68.5)
[5/18 22:4:32]: CMD-(TEL0):[exit]by admin from vty0 (10.11.68.5)
[5/18 22:4:41]: CMD-(TEL0):[show interfaces port-channel brief]by admin from vty0
(10.11.68.5)