i_o — Apollo

SHELL/I_O -- Shell Input/Output Redirection Summary                     84/10/29



  The  following  special  characters  allow  you to redirect standard input and
  output to Shell commands.  For a complete  description  of  their  usage,  see
  Chapter 3 of the DOMAIN System Command Reference Manual.

  If you use this format:           The Shell:
  -----------------------           ----------

  Command < pathname                Reads standard input from file
  Command <? pathname               Reads error input from file
  Command > pathname                Writes standard output to file
  Command >? pathname               Writes error output to file
  Command >> pathname               Appends standard output to file
  Command >>? pathname              Appends error output to file
  Command line | command line       Pipes standard output
  (Command;command)                 Groups commands' input and output
  Command line <</ ... /            Reads in-line data (here document)
  Command line <<?/ ... /           Reads in-line data from error input
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