Msort is a program for sorting files in sophisticated ways. Records need not be single lines. Key fields may be selected by position, tag, or character range. For each key, distinct exclusions, multigraphs, substitutions. and a sort order may be defined. Comparisons may be lexicographic, numeric, by string length, date, or time. Optional keys are supported. Msort uses the Unicode character set and provides full Unicode case-folding. The basic program has a somewhat complex command line interface, but may be driven by an optional GUI.
This is a companion discussion topic for the original entry at https://copr.fedorainfracloud.org/coprs/pcpa/msort/