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Full Discussion: Redirect within ksh
Top Forums Shell Programming and Scripting Redirect within ksh Post 302247876 by fpmurphy on Thursday 16th of October 2008 02:12:57 PM
Old 10-16-2008
This is an example of one way of doing what you want to do from within a shell script. It is a modified version of a code snippet I picked up some time ago on the Internet, forget where, so apologies to the original author.

Code:
#!/usr/bin/ksh
#
#  Within a shell script set up simultaneous output
#  to both terminal and a file using a FIFO
#

# delete output file
OUTPUT=log
[[ -e $OUTPUT ]] && rm $OUTPUT

# set up redirects
exec 3>&1 4>&2
FIFO=fifo.$$
[[ -e $FIFO ]] || mkfifo $FIFO
tee $OUTPUT < $FIFO >&3 &
PID=$!
exec > $FIFO 2>&1

# rest of your shell script here i.e.
echo "STDOUT `date`"
echo "STDERR `date`" >&2
# to here

# exit tee and clean up
exec 1>&3 2>&4 3>&- 4>&-
wait $PID
rm $FIFO

exit 0

 

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LEARN ABOUT DEBIAN

faxquit

FAXQUIT(8)						      System Manager's Manual							FAXQUIT(8)

NAME

       faxquit - tell a HylaFAX server to terminate

SYNOPSIS

       /usr/sbin/faxquit [ -q queue-dir ] [ modem ]

DESCRIPTION

       faxquit sends a message to a HylaFAX server process telling it to quit operation.

       If modem is specified, the faxgetty(8) process servicing the specified modem is notified.  modem can either be the name (typically the last
       component of the terminal port the modem is attached to), or the full name of the associated FIFO named pipe file, e.g. ``FIFO.ttym2''.

       If no modem is specified, faxquit will send the request to the ``FIFO'' named pipe file causing the HylaFAX queue manager process to termi-
       nate.

       Note  that  server  processes  may  not terminate immediately.  In particular the faxq process will not exit until any active jobs are com-
       pleted; this is necessary for proper operation (faxq must wait for child processes to terminate so that it can collect  their  exit  status
       and update the state of the jobs being operated on).

OPTIONS

       -q dir	 Use a spooling area other than /var/spool/hylafax.

FILES

       /var/spool/hylafax		  default spooling area
       /var/spool/hylafax/FIFO		  fifo for contacting faxq

       Consult hylafax-server(5) for a complete discussion of the structure and content of the spooling area.

SEE ALSO

       hylafax-server(5), faxq(8), faxgetty(8)

								  October 3, 1995							FAXQUIT(8)
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