[arch-general] journalctl

[Pascal]

hello,
when I use journalctl to track system events, I introduce line breaks for
better readability.
like multitail, I would like to introduce more verbose line breaks...
I wrote these few lines but it doesn't work as expected :

exec 6<&0
exec 0< <( while :; do read -sn1 k; echo $'\n'"# $( date +%H:%M:%S )
-------------------------------------------"$'\n'; done )
journalctl -f
exec 0<&6 6<&-

the second instruction "exec 0< <( while..." played alone works perfectly
in my terminal, but not as a redirection for journalctl.
any leads ?
regards, lacsaP.