Copies the specified file (or standard input) to standard output.
Example: To display the contents of the file /etc/passwd to standard output, use
To send the contents of a file to some other program as input, cat is frequently used on the left side of a pipe:
cat database.dat | sort -rn
|-A, --show-all||This option is equivalent to “-vET”.|
|-b, --number-nonblank||Use this option to include line numbers for output (nonblank lines only) and to number all nonblank output lines, starting with 1.|
|-e||This option is equivalent to “-vE”.|
|-E, --show-ends||Use this option to display a “$” after the end of each ...|