NAME
recordio - records the input and output of a program.
SYNOPSIS
recordio prog
DESCRIPTION
recordio runs prog. It prints lines to descriptor 2 showing the input
and output of prog.
At the beginning of each line on descriptor 2, recordio inserts the
prog process ID, along with < for input or > for output. At the end of
each line it inserts +, a space, or [EOF]; a space indicates that there
was a new line 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 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]
if the cat program prints several packets.
recordio uses several lines for long packets to guarantee that each
line is printed atomically.
recordio runs as a child process of prog. It exits when it sees the
end of prog’s output.
SEE ALSO
tcpserver(1), tcprules(1), tcprulescheck(1), argv0(1), fixcrio(1),
rblsmtpd(1), tcpclient(1), who@(1), date@(1), finger@(1), http@(1),
tcpcat(1), mconnect(1), tcp-environ(5)
http://cr.yp.to/ucspi-tcp.html
recordio(1)