How do I remove colons from a list of MAC addresses?

Question

I'm having a hard time trying to remove the colons in a list of MAC addresses.

My file:

00:21:5A:28:62:BF
00:24:81:0A:04:44

Expected Output:

00215A2862BF
0024810A0444

Answer 1

Given your tags, you want to accomplish this in a shell:

cat file | sed s/://g

edit: you don't really need the cat either if you are reading from a file:

sed s/://g file

Answer 2

perl -pe "s/://g" yourfile