show running-config or show tac?

hey all,

i want to get the cisco configuration file which one is better? in terms of the completeness..
show running-config or show tac?
kecoakAsked:
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Jan SpringerConnect With a Mentor Commented:
The command is "show tech".  You don't need this for backup.  This is specifically for trouble-shooting problems.

Make sure that any changes that have been made are committed by typing:
  copy run start

Then do a "show start" to get the complete config.
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Taurus042Commented:
Haven't heard of the command "show tac" but I also haven't run any PIX newer than 6.3.

I have always used write terminal (which is the same as show running-config) and have never had any problems restoring a config.
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Pete LongTechnical ConsultantCommented:
Ive no Idea what sho tac does?

But the most complere config will be shown with a

more system:running-config

command :)
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Pete LongTechnical ConsultantCommented:
the command above shows the shared secrets etc that are usually blanked out :)
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Pete LongTechnical ConsultantCommented:
>>i want to get the cisco configuration file which one is better

Though re-reading your question, are you simply trying to back the config up? if so see my website here http://www.petenetlive.com/Tech/Firewalls/Cisco/backuprestore.htm
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AugustTenCommented:
Hi, you should use 'sh running-config all' to list the complete configuration, including default settings.
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Pete LongTechnical ConsultantCommented:
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