       echo [ -neE ] [ arg ... ]
              Write each arg on the standard output, with a space
              separating each one.  If the -n flag  is  not  pre-
              sent,  print a newline at the end.  echo recognizes
              the following escape sequences:
              \a     bell character
              \b     backspace
              \c     don't print an ending newline
              \e     escape
              \f     form feed
              \n     newline
              \r     carriage return
              \t     horizontal tab
              \v     vertical tab
              \\     backslash
              \0NNN  character code in octal, with a  maximum  of
                     three  digits  after  the  zero; a non-octal
                     digit terminates the number
              \xNN   character code in hexadecimal, with a  maxi-
                     mum  of two digits after the `x'; a non-hex-
                     adecimal digit terminates the number.

              The -E falg or the BSD ECHO option can be  used  to
              disable  these  escape sequences. In the later case
              -e flag can be used to enable them.
