ECHO(C) UNIX System V
Name
echo - echo
Syntax
echo [-n] [ arg ] ...
Description
The echo command writes its arguments separated by blanks
and terminated by a new-line on the standard output. The -n
option prints a line without the new-line; same as using the
\c escape sequence.
echo also understands C-like escape conventions; beware of
conflicts with the shell's use of \:
\b backspace
\c print line without new-line
\f form-feed
\n new-line
\r carriage return
\t tab
\v vertical tab
\\ backslash
\n The 8-bit character whose ASCII code is a 1, 2 or
3-digit octal number. In all cases, n must start
with a zero. For example:
echo "\07" - Echoes Ctrl-G.
echo "\007" - Also echoes Ctrl-G.
echo "\065" - Echoes the number ``5''.
echo "\0101" - Echoes the letter ``A''.
The echo command is useful for producing diagnostics in
command files and for sending known data into a pipe.
See Also
sh(C)
Notes
When representing an 8-bit character by using the escape
convention \0n, the n must always be preceded by the digit
zero (0).
For example, typing: echo 'WARNING:\07' will print the
phrase WARNING: and sound the ``bell'' on your terminal.
The use of single (or double) quotes (or two backslashes) is
required to protect the ``\'' that precedes the ``07''.
For the octal equivalents of each character, see ascii(M).
(printed 4/27/90) ECHO(C)