Main command:
mp_drop_knife_enable 1;ent_fire weapon_knife addoutput "classname weapon_knifegg

Knife command:

Karambit:
give weapon_knife_karambit;mp_drop_knife_enable 1;ent_fire weapon_knife addoutput "classname weapon_knifegg

M9 Bayonet:
give weapon_knife_m9_bayonet;mp_drop_knife_enable 1;ent_fire weapon_knife addoutput "classname weapon_knifegg

Bayonet:
give weapon_bayonet;mp_drop_knife_enable 1;ent_fire weapon_knife addoutput "classname weapon_knifegg

Butterfly:
give weapon_knife_butterfly;mp_drop_knife_enable 1;ent_fire weapon_knife addoutput "classname weapon_knifegg

Flip Knife:
give weapon_knife_flip;mp_drop_knife_enable 1;ent_fire weapon_knife addoutput "classname weapon_knifegg

Gut knife:
give weapon_knife_gut;mp_drop_knife_enable 1;ent_fire weapon_knife addoutput "classname weapon_knifegg

Huntsman knife:
give weapon_knife_tactical;mp_drop_knife_enable 1;ent_fire weapon_knife addoutput "classname weapon_knifegg

Falchion:
give weapon_knife_falchion;mp_drop_knife_enable 1;ent_fire weapon_knife addoutput "classname weapon_knifegg

Bowie knife:
give weapon_knife_survival_bowie;mp_drop_knife_enable 1;ent_fire weapon_knife addoutput "classname weapon_knifegg

Ursus :
give weapon_knife_ursus;mp_drop_knife_enable 1;ent_fire weapon_knife addoutput "classname weapon_knifegg

Navaja:
give weapon_knife_gypsy_jackknife;mp_drop_knife_enable 1;ent_fire weapon_knife addoutput "classname weapon_knifegg

Stiletto:
give weapon_knife_stiletto;mp_drop_knife_enable 1;ent_fire weapon_knife addoutput "classname weapon_knifegg

Talon
give weapon_knife_widowmaker;mp_drop_knife_enable 1;ent_fire weapon_knife addoutput "classname weapon_knifegg

Cord
give weapon_knife_cord;mp_drop_knife_enable 1;ent_fire weapon_knife addoutput "classname weapon_knifegg

CANIS
give weapon_knife_canis;mp_drop_knife_enable 1;ent_fire weapon_knife addoutput "classname weapon_knifegg

give weapon_knife_outdoor;mp_drop_knife_enable 1;ent_fire weapon_knife addoutput "classname weapon_knifegg

give weapon_knife_skeleton;mp_drop_knife_enable 1;ent_fire weapon_knife addoutput "classname weapon_knifegg