tsort Command tsort
Topological sort
tsort [file]
tsort performs a topological sort of a set of input items. The
input file (or the standard input, if no file is given) specifies
an ordering on pairs of items. It consists of pairs of items
separated by blanks, tabs or newlines. If a pair contains the
same item twice, it simply indicates that the item is in the in-
put set. Otherwise, the pair indicates that the first item
precedes the second in the ordering.
tsort prints a sorted list of the input items on the standard
output.
***** See Also *****
commands, sort
***** Diagnostics *****
tsort prints an error message on the standard error if its input
contains an odd number of items or if the specified ordering in-
cludes a cycle.
COHERENT Lexicon Page 1