Hi all, I have the following test case.
~~~ tmpdir=$(mktemp -d) cd "$tmpdir" mkfifo a b seq 10 | tee a b > /dev/null & pid=$! set -v x=$(wc -l a) sed -e "s/^/b$x/" b wait "$pid" ~~~ In the above test case, the second fifo `b` will depend on the first fifo `a`. But it will get stuck in reading the first fifo `a`, in the following line, ~~~ x=$(wc -l a) ~~~ Do you have some idea to resolve `tee` with dependency for two fifos? Many thanks for your help. Best regards, Jin
