tee Command
  
  
  Purpose
  
  Displays the output of a program and copies it into a file.
  
   Syntax
  
  tee [  -a ] [  -i ] [ File ... ]
  
  Description
  
  The tee command reads standard input, then writes the output of a
  program to standard output and simultaneously  copies it into the
  specified file or files.
  
  Flags
  
  -a	Adds the output to the end of File instead of writing over it.
  
  -i	Ignores interrupts.
  
  Note:	If you specify both flags, each must be preceded by a -
  (minus sign) on the command line.
  
  Exit Status
  
  This command returns the following exit values:
  
  0	The standard input was successfully copied to all output files.
  
  >0	An error occurred.
  
  Note:	If a write to any successfully opened File operand is not
  successful, writes to other successfully opened File operands and
  standard output will continue, but the exit value will be >0.
  
  Examples
  
  1.	To view and save the output from a command at the same time:
  
  lint program.c | tee program.lint
  
  This displays the standard output of the command  lint program.c
  at the workstation, and at the same time saves  a  copy  of it in
  the file program.lint. If a file named program.lint already ex-
  ists, it is deleted and replaced.
  
  2.	To view and save the output from a command to an existing
  file:
  
  lint program.c | tee -a program.lint
  
  This displays the standard output of the lint program.c command
  at the workstation and at the  same  time appends a copy of it to
  the end of the program.lint file. If the program.lint file does
  not exist, it is created.
  
  Implementation Specifics
  
  This command is part of Base Operating System (BOS) Runtime.
  
  Files
  
  /usr/bin/tee	Contains the tee command.
  
  Related Information
  
   Input and Output Redirection Overview in AIX Version 3.2 System
  User's Guide: Base and Devices describes how the operating system
  processes input and output and how to  use  the redirect and pipe
  symbols.
  
  The  script command.