csname-doc – A list of plain.tex cs names

The doc­u­ment con­sti­tutes a list of ev­ery con­trol se­quence name (csname) de­scribed in the TeXbook, to­gether with an in­di­ca­tion of whether the csname is a prim­i­tive TeX com­mand, or is de­fined in plain.tex