rub along vs scratch along

rub along and scratch along both are verbs.

Word	Noun	Adjective	Verb	Adverb
rub along	No	No	Yes	No
scratch along	No	No	Yes	No

As verbs, rub along and scratch along are synonyms defined as:

Other synonyms of rub along include scrape along, scrape by, squeak by, squeeze by.

rub along (verb)	scratch along (verb)
manage one's existence barely	manage one's existence barely