Substitution query

[ranjit]

Input file:

85CD3F1F:U5791.001.99B03HF-P1-C08:bpr06cd01dn:5:noneCI 10/100/1000Mbps Ethernet UTP 2-port

Desired output:

83C3D1F:U5791:001:99B03HF1:C08:bpr06cd01dn:5:noneCI 10/100/1000Mbps Ethernet UTP 2-port

Could someone assist with a substitution query. The idea is to replace the following first two characters "." and "-" ONLY to a ":"

This replaces the first occurance
sed 's/\./:/1' inputfile

Is there a method to replace the first two occurances in one hit.

Thanks

 

[aigles]

sed 's/\./:/;s/\./:/;s/-/:/;s/-/:/' inputfile

Jean-Pierre.

 

[ranjit]

That's great Jean-Pierre

Thanks