Do not print the trailing newline character. This may also be achieved by appending \c to the end of the string, as is done by iBCS2 compatible systems. Note that this option as well as the effect of \c are implementation-defined in -p1003.1-2001 as amended by Cor. 1-2002. Applications aiming for maximum portability are strongly encouraged to use printf(1) to suppress the newline character.
Some shells may provide a builtin echo command which is similar or identical to this utility. Consult the builtin(1) manual page.