объединять и печатать файлы в обратном порядке (concatenate and print files in reverse)
Имя (Name)
tac - concatenate and print files in reverse
Синопсис (Synopsis)
tac [OPTION]... [FILE]...
Описание (Description)
Write each FILE to standard output, last line first.
With no FILE, or when FILE is -, read standard input.
Mandatory arguments to long options are mandatory for short
options too.
-b, --before
attach the separator before instead of after
-r, --regex
interpret the separator as a regular expression
-s, --separator=STRING
use STRING as the separator instead of newline
--help display this help and exit
--version
output version information and exit
