knife in the left hand
bind "0" "slot10; cl_righthand 1" bind "1" "slot1; cl_righthand 1" bind "2" "slot2; cl_righthand 1" bind "3" "slot3; cl_righthand 0" bind "4" "slot4; cl_righthand 1" bind "5" "slot5; cl_righthand 1" bind "6" "slot6; cl_righthand 1" bind "7" "slot7; cl_righthand 1" bind "8" "slot8; cl_righthand 1" bind "9" "slot9; cl_righthand 1"
copy and past this to your userconfig or autoexec.
edit the keys 0-9 to your favorite keys for the slot.
switch the 1s and 0s after cl_righthand if you like your guns in the left hand and the knife in the right. 1 is right handed 0 is lefthanded.
be sure the config.cfg is wright protected after every change
gl and hf

