recordio - records the input and output of a program.
recordio prog
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.
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