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UGU: Unix Guru Universe - Unix Tip #4566- September 11, 2017 - Home : Help : Today's Tip
Unix Tip #4566- September 11, 2017

SHARING STDIN/STDOUT ON 2 TERMINALS



Ever wanted the standard input and standard output
to be shared on two terminals?

Try the following short script,

------------------- CUT HERE -------------------------

[ $# -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

------------------- CUT HERE -------------------------
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.


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