newsort

Installation

newsort requires Node.js v4+ to run.

$ npm install -g newsort

Use

create a file name zipcode and paste in following:
Joe 56789
Sam 45678
Bob 34567
Wendy 23456
Adam 12345

Try if the file is created properly

$ cat zipcode

Joe 56789
Sam 45678
Bob 34567
Wendy 23456
Adam 12345

Get the sorted result

$ newsort zipcode

Adam 12345
Bob 34567
Joe 56789
Sam 45678
Wendy 23456

The -r option just reverses the order of the sort

$ newsort zipcode -r

Wendy 23456
Sam 45678
Joe 56789
Bob 34567
Adam 12345

Use the -k option to sort on a certain column. For example, use "-k 2" to sort on the second column.

$ newsort zipcode -k 2

Adam 12345
Wendy 23456
Bob 34567
Sam 45678
Joe 56789