cat -v

wikipedia:cat -v

     -v      Display non-printing characters so they are visible.  Control
            characters print as ‘^X’ for control-X; the delete character (octal
            0177) prints as ‘^?’.  Non-ASCII characters (with the high bit set)
            are printed as ‘M-’ (for meta) followed by the character for the low
            7 bits.

Related

• cat

See also

• cat, tac, more, less, tail, mtail, echo, stdin, tr, column, paste, truncate, logrotate, xzcat pv, progress, sort, ncat, virt-cat, awk, join, col, fold, tee, sponge, nfs-cat, journalctl, ccat, icat, EOF, lolcat