XMLStarlet is a set of command line utilities (tools) to transform, query, validate, and edit XML documents and files using simple set of shell commands in similar way it is done for text files with UNIX grep, sed, awk, diff, patch, join, etc utilities.
transpose is a fast and efficient command-line tool that transposes (the rows become the columns, the columns become the rows) or reshapes a matrix in plain text. Inputs and outputs can be files or streams.
cw(color wrapper) is a non-intrusive ANSI color wrapper for common unix-based commands on GNU/linux. cw is designed to simulate the environment of the commands being executed, so that if a person types 'du', 'df', etc. it will be colored in real-tim
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Latexss is a program that can transform a text file with a very minimal style syntax into a self contained LaTeX spreadsheet powered by the fp package. A graphical front-end (klatexss) is provided to generate both the text and the LaTeX file.