I try to use git gpush

At first time in Ubuntu I get 1) error

Can't locate Term/ReadKey.pm in @INC (you may need to install the Term::ReadKey module)

I solved it by

sudo apt-get install -y libterm-readkey-perl

After I get 2) error

Can't locate JSON.pm in @INC (you may need to install the JSON module)

I solved it by

sudo apt-get install libjson-perl

I suggest Git-gpush-scripts check decency before work and produce userfriendly error message for popular Linux distros like Ubuntu.

In my case I want to get error like this:
Can't locate Term/ReadKey.pm in @INC (you may need to install the Term::ReadKey module)
Can't locate JSON.pm in @INC (you may need to install the JSON module)
Looks you should do
sudo apt-get install -y libterm-readkey-perl libjson-perl