Cat and taC

tac is cat reversed , as the name suggests , the tac command do cat in reverse . The command was written by Jay Lepreau and David MacKenzie .

Options available are:

-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 help and exit
–version	output version information and exit