hashsum

command line tool for calculating and checking hashsums of files.

Installation | Usage | Bugs | License

Installation

From Source

• Make sure you have the go programming language available on your operating system. If you need to install them, please check out the project's website for documentation on how to download and configure Go for your system.
• Download the source or clone the repository. Make sure the source is located within your $GOPATH/src directory. Reccomendation is $GOPATH/src/github.com/saschascherrer/hashsum
• Build the binary using go build in the project root directory ($GOPATH/src/github.com/saschascherrer/hashsum). If you need to crosscompile, go has you covered.
  Example on linux for windows:
  $> GOOS=windows GOARCH=amd64 go build -o hashsum.exe main.go

Download binaries

• The binaries are built with the standard go compiler on a linux system. The Windows binary is crosscompiled. This means, that the binaries contain everything needed for the program to run, so there are no dependencies.
• Go to the Releases Page on GitHub and select the binary for your platform.
• Make sure the hashsum of the binary matches the provided hash.
  Hint: Using hashsum to check itself cannot ensure you get what you expect.

Usage

hashsum [-a md5|sha1|sha256|sha512] [-o <outfile>] <file> [<file> [...]]
	calculate hashsums over the specified files, optionally writing it to <outfile>

hashsum [-a md5|sha1|sha256|sha512] -r <hashstring> <file>
	calculate hashsum of specified file and compare it to the provided hashsum

Planned:

hashsum [-a md5|sha1|sha256|sha512] -c <sumfile> [<file>, [<file>[, ...]]]
  compares priviously generated hashsum files with present files. Usually
	checks every entry of the sumfile, but can be limited to files of interest
	by specifying them as arguments

Bugs

Bugs can and do happen. If you are misfortunate enough to experience any of them with the hashsum tool, I would be happy to hear what went wrong. So please feel free to report any bugs to the GitHub Issue Tracker. You are also encouraged but not obliged to look into the source (it is not too bulky) and submit bugfixes yourself.

License

This helper tool is licenced under the MIT License
If you commit changes to this repository, you must sign-off your commit to confirm your right to make the contribution (see DeveloperCertificate.org). This can easily be done by using git commit -s to the commit. This also means, you must not submit anonymous contributions.