Substitution modifiers

Substitution modifiers can be applied to any command, variable or history substitution. Any number in a row can be applied.

Operator	Meaning
`:n`	`n`th word
`:#`	Count the number of words
`:^`	Word number 1, counting from 0
`:$`	Last word
`:%`	Word matched by a `!?str?` history search
`:n-m`	`n`th through `m`th words
`:-n`	0 through `n`th words
`:n-`	`n`th through next-to-last words
`:n*`	`n`th through last word
`:*`	1 through last word
`:q`	Single-quote each word
`:s/str1/str2/`	Substitute `str2` for `str1` and then reparse into words. Match failures are considered to be errors unless `ignoreerrors == 2`.
`:S/str1/str2/`	Substitute `str2` for `str1` but leave it as a single string. Also, failure to match is not considered an error.
`:&`	Repeat last substitution
`:g`	Global editing: as a prefix character to any of the other editing operators, it means apply the edit operation everywhere it matches, not just the first occurrence.
`:x`	Treat each word as a string, break it up into words, then single-quote each word.
`:p`	Print the substitution but don't execute the statement. (Ignored except in history substitutions.)
`:h :r :t :e :f :m :M :A :L`	Pathname editing operators: head, root, tail, extension, fullpath, mixedpath, fullmixedpath, shortname and longname.