category:  Editors
requires: bash cygwin 
sdesc: "GNU line-oriented text editor"
ldesc: "ed is a line-oriented text editor. It is used to create, display,
modify and otherwise manipulate text files, both interactively and via shell
scripts. A restricted version of ed, red, can only edit files in the current
directory and cannot execute shell commands. ed is the 'standard' text editor
in the sense that it is the original editor for Unix, and thus widely
available. "