макропроцессор (macro processor)
Имя (Name)
m4 — macro processor
Синопсис (Synopsis)
m4 [-s] [-D name[=val]]... [-U name]... file...
Описание (Description)
The m4 utility is a macro processor that shall read one or more
text files, process them according to their included macro
statements, and write the results to standard output.