passwgen-go

$ ./passwgen-go --help
Usage of ./passwgen-go:
  -c, --characters="1aA%": Allowed characters type on the password
  -C, --clipboard=false: Copy the generated password to the clipboard instead of printing it
  -i, --ignored="": Characters ignored in the creation of the password
  -l, --length=-1: Fixed length of the password (overwrites 'min' and 'max' flags)
  -M, --max=16: Maximum size of the password
  -m, --min=8: Minimum size of the password

This is a simple CLI random password generator written in golang. It generates the password given the type of characters and the intended password size.

Installation

Download executable

Binary releases are available in here for different platforms, so you can just download and run it.

Building from source code

It is also possible to build it from the source code if you have go and git installed on your system. To do so, follow those steps:

$ git clone https://github.com/Bollos00/passwgen-go.git
$ cd passwgen-go

To install:

$ go install .

To just build it:

$ go build .

To run it:

$ go run ./main.go

Usage

Types of characters

There are four types of characters shown in the table bellow.

Type	Available Characters
Numeral	'0', '1', '2', '3', '4','5', '6', '7', '8', '9'
Lower Letter	'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'
Upper Letter	'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'
Special	'!', '"', '#', '$', '%', '&', ''', '(', ')', '*', '+', ',', '-', '.', '/', ':', ';', '<', '=', '>', '?', '@', '[', '\', ']', '^', '_', '`', '{', '|', '}', '~', ' '

By default it will use all of them, but you can change it passing the -c a and -i parameters to the program. Examples:

• Generates a password with only numerical characters

$ passwgen-go -c "0"

• Generates a password with only lower and upper letter characters

$ passwgen-go -c "aA"

• Generates a password with numeral, lower and upper letter characters but ignoring 01oOil

$ passwgen-go -c "gH5" -i "01oOil"

• Generates a password only with special characters

$ passwgen-go -c "@"

Password size

It is also possible to set the desired length of the password, being it a fixed value or a number between a range with the -m, -M and -l flags. By default it generates a password with a length between 8 nad 16. Examples:

• Generates a password with length between 20 and 30

$ passwgen-go -m 20 -M 30

• Generates a password with fixed length of 50

$ passwgen-go -l 50

• Generates a password with fixed length of 6 with only numbers

$ passwgen-go -l 6 -c "1"

Clipboard

The generated password can be given to the user with two different forms:

• By printing it into the console (default);
• By transferring it into the clipboard.

In order to copy the password into the clipboard, you may use the -C flag, as shown below:

$ passwgen-go -C