scrape along vs scratch along

scrape along and scratch along both are verbs.

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

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

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

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