Topological sort, perform a topological sort on the given FILE, or standard input if no input file is given or for a FILE of `-'.
Syntax tsort [options] [file] Options --help --version `tsort' reads its input as pairs of strings, separated by blanks, indicating a partial ordering. The output is a total ordering that corresponds to the given partial ordering. For example tsort <<EOF a b c d e f b c d e EOF will produce the output a b c d e f `tsort' will detect cycles in the input and writes the first cycle encountered to standard error.
"There is always room at the top" ~ Daniel
sort - Sort text files
Equivalent Windows commands: SORT - Sort input