Looks like encapsulation error, I had to add >"< to INFO_SESSION Variable to get correct output.
Script-Content:
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"
echo /opt/omni/bin/omnir $PARAM
Returns:
/opt/omni/bin/omnir -filesystem srv-t2-ux-bl860-2.gmavtovaz.local:/tmp '/tmp' -session 2015/04/06-62 -tree /tmp/list_dev_detail.txt
Without the additon the Description-Part ('tmp') was missing,which would result in no Object found.