use `cat -v installer.sh` -v Displays non-printing characters so they are visible. Control characters print as `^X' for control-X, with

use `cat -v installer.sh` -v Displays non-printing characters so they are visible. Control characters print as `^X' for control-X, with the exception of the tab and EOL characters, which are displayed normally. The tab character, control-I, can be made visible via the -t option. The DEL 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. http://www.openbsd.org/cgi-bin/man.cgi/OpenBSD-current/man1/cat.1?query=cat http://www.openbsd.org/cgi-bin/man.cgi/OpenBSD-current/man1/...