I have a file like this :
iphonevisitor -> 125 ipadvisitor -> 200 iphonemember -> 120 ipadmember -> 100 macvisitor -> 230
And I want to calculate the sum by iphone/ipad/mac, and output it like this :
A245 B300 C230
A stands for iphone, B for ipad, C for mac.
How should I do this using Shell script? Thanks.