Simple Unix/Linux Text Editing Command

-Print

cat

synopsis   : cat [OPTION]… [FILE]…

description: concatenate files and print on the standard output

tac

synopsis   : tac [OPTION]… [FILE]…

description: concatenate and print files in reverse

-Compare

cmp

synopsis   : cmp [-c] [-i N] [-l] [-s] [-v] file1 file2

description: compare two files

diff

synopsis   : diff [-b] [-i] [-t] [-w] [-c] [-C] [-e] [...]