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Thank You, it helped me solve my problem

Hi,

I want to get an input from user and parse the input. The legal characters allowed in the input are alnum(a-zA-Z0-0), . , -
Also the first and las characters must be alnum only.

e.g
if...

Hi,

I want a shell command through which I can parse an FQDN (Fully Qualified Domain Name) and check whether it is correct or not?

The FQDN can accept alphanumeric, . and - only.

I tried...