treat everything following – as an argument, even if it begins with –
–n
do not add a ending newline to output
–p
redirect the given arguments to a co-process
–r
ignore escape conventions
–R
ignore escape conventions; do not interpret – arguments as options (except –n)
–s
redirect given arguments to history file
–un
redirect arguments to file descriptor n. If file descriptor is greater than 2, it must first be opened with exec. If n is not specified, default file descriptor is 1 (standard output).
print Escape Characters
a
Bell character
Backspace
c
Line without ending newline
f
Formfeed
Newline
Return
Tab
v
Vertical tab
\
Backslash
x
8-bit character whose ASCII code is the 1-, 2-, or 3-digit octal number x
