Detailed explanation of cat command
NAME
Cat-concatenate file and print on the standard output: connect the file and display it to standard output.
SYNOPSIS
Cat [OPTION]... [FILE]...
DESCRIPTION
Concatentate FILE (s), or standard input, to standard output
-A,-- show-all
Eqivalent to-vET is equivalent to-vET
-b-- number-nonblank
Number nonempty output lines labels output lines that are not blank lines
-e equivalent to-vE
-E-- show-ends
Display $at end of each line add $at the end of each line
-n,-- number
Number all output lines: number all output lines
-s-- squeeze-blank
Supress repeated empty output lines suppresses the output of duplicate blank lines (if there is a duplicate line, output one).
-t equicalent to-vT
-T,-- show-tabs
Display TAB characters as ^ I display tabs
