recordio(1)

NAME

   recordio - record the input and output of a program

SYNTAX

   recordio program [ arg ...  ]

DESCRIPTION

   recordio  runs  program  with  the given arguments.  It prints lines to
   stderr showing the input and output of program.

   At the beginning of each line on stderr, recordio inserts  the  program
   process ID, along with < for input or > for output.  At the end of each
   line it inserts a space, a plus sign, or [EOF]; a space indicates  that
   there was a newline in the input or output, and [EOF] indicates the end
   of input or output.

   recordio prints every packet of input and output immediately.  It  does
   not  attempt  to  combine  packets  into  coherent  stderr  lines.  For
   example,

        recordio sh -c 'cat /dev/fd/8 2>&1' > /dev/null

   could produce

        5135 > cat: /dev/fd/8: Bad file descriptor
        5135 > [EOF]

   or

        5135 > cat: +
        5135 > /dev/fd/8+
        5135 > : +
        5135 > Bad file descriptor
        5135 > [EOF]

   recordio uses several lines for long packets  to  guarantee  that  each
   line is printed atomically to stderr.

   recordio  runs as a child of program.  It exits when it sees the end of
   program's output.

SEE ALSO

   tcpserver(1)

                                                               recordio(1)

---

Free and Open Source Software