How to merge data in 2 csv files using shell script?

csv1:

StoreID    Emailcount

2000           3

2001           2

csv2:

StoreID    Slotcount

2000           100

2001           120

Output required as below

StoreID    Emailcount     Slotcount

2000           3             100

2001           2             120

Can you please help me to resolve my issue?

Any attempts / ideas / thoughts from your side? Did you search these forums?

Hello, what have you tried? Please read the forum rules.

Also, quick hint did you try the "join" command?