search for: class20

...e script above (not so elegant I think but is my first attempt on awk) parse /sistem/class15 and add filter rules to match classid 1:15 I''ll make scripts for files like /sistem/classxx to match class xx and classid 1:xx and so on -- after this I only modify files: /sistem/class15 /sistem/class20 /sistem/classxx and run: tc qdisc del dev eth0 root (actually made a new script rm_shaping) and of course run the awk script again (./add_shaping) So finally all I have to do is rm_shaping, add_shaping and my modifications of /sistem/classxx files are loaded --- And shaping works like a charm...