bionic (1) recordio.1.gz

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)