Modifying user input

[edrichard]

I need to modify the input entered by a user into a very specific format. I'm able to read the input, but I can't see how you can add to it, or modify what they've keyed.

For example, I need to change the format of an HBA world wide id address from the users input of 100000c812f4f0c1 to 10.00.00.c8.12.f4.f0.c1 any ideas?

[burschik]

You can't seriously expect a helpful answer to a question that vague. Don't you think it might be relevant to mention the programming language you are using and how you are getting the user input in the first place?

[edrichard]

burschik,

Sorry about overlooking the obvious...

In a nutshell, I am writing a bash script that prompts an operator for the wwid address of the hba card(s) in their server. I'll need to modify their reply by changing the format, for example - 100000c812f4f0c1 to 10.00.00.c8.12.f4.f0.c1

Once I change the format, the script will add their server to the storage array (that will only acept the wwid address in this format).

[burschik]

read input
echo $input | sed 's/../&./g'

[edrichard]

Burschik,

Worked like a champ. Thanks very, very much!

[edrichard]

Burschik,

One last follow-up, the code returns an extra "." at the end of the string, how can I chop this off? From 10.00.00.00.c8.13.b2.1a. to 10.00.00.00.c8.13.b2.1a

[burschik]

read input
echo $input | sed 's/../&./g; s/\.$//'

[edrichard]

Thanks again, work perfectly!