omnir syntax (Object not found)

Hello friends, need your help.

Try restore one file with omnir

Exsample (work):

omnir -filesystem srv-t2-ux-bl860-2.gmavtovaz.local:/tmp '/tmp' -session 2015/04/06-62 -tree /tmp/list_dev_detail.txt

But IF

Exsample (don't work):

INFO_SESSION=srv-t2-ux-bl860-2.gmavtovaz.local:/tmp '/tmp'
BACKUP_SESSION_DATA=2015/04/06-62
file1=/tmp/list_dev_detail.txt

PARAM="-filesystem $INFO_SESSION -session $BACKUP_SESSION_DATA -tree $file1"

/opt/omni/bin/omnir $PARAM

Object not found

But if i copy -filesystem $INFO_SESSION -session $BACKUP_SESSION_DATA -tree $file1 and paste instead of$PARAM

all works!