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# cli.go
cli.go is simple, fast, and fun package for building command line apps in Go. The goal is to enable developers to write fast and distributable command line applications in an expressive way.
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## Overview
Command line apps are usually so tiny that there is absolutely no reason why your code should *not* be self-documenting. Things like generating help text and parsing command flags/options should not hinder productivity when writing a command line app.
This is where cli.go comes into play. cli.go makes command line programming fun, organized, and expressive!
## Installation
Make sure you have the a working Go environment. [See the install instructions](http://golang.org/doc/install.html).
To install cli.go, simply run:
```
11 years ago
$ go get github.com/codegangsta/cli
```
Make sure your PATH includes to the `$GOPATH/bin` directory so your commands can be easily used:
```
export PATH=$PATH:$GOPATH/bin
```
## Example
Being a programmer can be a lonely job. Thankfully by the power of automation that is not the case! Let's create a greeter app to fend off our demons of loneliness!
``` go
/* greet.go */
package main
import "os"
import "github.com/codegangsta/cli"
func main() {
cli.Name = "greet"
cli.Usage = "fight the loneliness!"
cli.Action = func(c cli.Context) {
println("Hello friend!")
}
cli.Run(os.Args)
}
```
Install our command to the `$GOPATH/bin` directory:
```
$ go install
```
Finally run our new command:
```
$ greet
Hello friend!
```
## About
cli.go is written by none other than the [Code Gangsta](http://codegangsta.io)