| Option | Details |
|---|---|
| -n | Print line numbers |
| -v | Show non-printing characters using ^ and M- notation except LFD and TAB |
| -T | Show TAB characters as ^I |
| -E | Show linefeed(LF) characters as $ |
| -e | Same as -vE |
| -b | Number nonempty output lines, overrides -n |
| -A | equivalent to -vET |
| -s | suppress repeated empty output lines, s refers to squeeze |
cat can read from both files and standard inputs and concatenates them to standard output