Museum

Home

Lab Overview

Retrotechnology Articles

Online Manuals

⇒ echo(1) — 4D1 2.0

Media Vault

Software Library

Restoration Projects

Artifacts Sought

Related Articles

sh(1)



     ECHO(1)                                                   ECHO(1)



     NAME
          echo - echo arguments

     SYNOPSIS
          echo [ arg ] ...

     DESCRIPTION
          echo writes its arguments separated by blanks and terminated
          by a new-line on the standard output.  It 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
               \0n  where n is the 8-bit character whose ASCII code is
                    the 1-, 2- or 3-digit octal number representing
                    that character.

          echo is useful for producing diagnostics in command files
          and for sending known data into a pipe.

     SEE ALSO
          sh(1).

     CAVEATS
          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(5), in the Programmer's Reference Manual. ORIGIN AT&T V.3 Page 1 (last mod. 8/20/87)

Typewritten Software • bear@typewritten.org • Edmonds, WA 98026