Does the IFS variable break the command?

Question

linux

Excerpt from the script:

WHATTOBACK="-P:Music:-P:Фильмы/Старые:-P:Новая папка"
OIFS=$IFS
IFS=':'
dar -R /media/Storage/ -c /media/backup/`date -I` \
-Z "*.[Ff][Ll][Vv]" -Z "*.[Mm][Kk][Vv]" \
-Z "*.[Gg][Zz}" -Z "*.[Xx][Zz]" \
$WHATTOBACK -D
IFS=$OIFS

It seems to work, but I doubt it. Did IFS break something in the team? After all, after dar there are spaces, keys, their values, a backslash.
Am I applying IFS correctly?

Answer 1

> Am I using IFS correctly?
I don't know if you are using it correctly IFS, but it all looks rather dumb. Actually, you want to write:

IFS=':' read -ra WHATTOBACK <<< "$WHATTOBACK"
dar ... "${WHATTOBACK[@]}"

Answer 2

Am I applying IFS correctly?

Games with IFS usually create more problems than they solve.
The solution to your original problem is in the answer to your other question .