Ever wanted the standard input and standard output
to be shared on two terminals?
Try the following short script,
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[ $# -lt 2 ] && echo "Usage: $0 program ttytodupon" && exit 2
mytty=`tty`
prog=$1
othertty=$2
sh -c "$prog|tee -a $mytty" 1>$othertty 2>&1 0>$othertty
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This tip generously supported by: ian@kiwiplan.co.nz NOTE: All tips provided are USE AT YOUR OWN RISK. Tips are submitted
by various unix admins around the globe. UGU suggest you read and
test each tip in a non-volitile environment before placing into
production.