Shellac allows you to run powerful UNIX tools within Mac OS X Automator workflows. It includes cat, cut, grep, head, paste, sort, tail, uniq, wc, and more. Aqua controls can be used to tweak any setting of the tool. Plain-language descriptions may be read straight from the Automator interface, and tooltips are provided. Tools may be found by their UNIX names. Either explicit text, files, or folders are accepted as input. It is packaged as a self-contained application for easy installation.
VanDyke ClientPack is a set of commandline utilities for securely automating file transfer, shell, and public-key administration tasks on Windows, Linux, and Unix platforms. It includes vsftp, an interactive SFTP commandline utility providing quick, easy, and secure file transfer operations, vsh, a commandline shell utility, vcp, a commandline file transfer utility, vkeygen, a public/private key generator utility, and vpka, a commandline tool for uploading keys to a Secure Shell server.