Whats the purpose of echo2lat and text2lat program?
Both programs are made to ease up the input of LaTeX source files. Some characters/glyphs simply to type in plain text are represented by complicated encodings in LaTeX (i.e. a backslash “\”is specified as “\textbackslash{}”, an underscore “_” is specified as “\textunderscore{}”). Both programs convert normal text to LaTeX source. Echo2lat converts the text specified as command line arguments, text2lat converts files specified by name or runs as a filter.