Examples of search and replace with regular expressions

Examples of ranges

Range	Description	Example
`21`	line 21	`:21s/old/new/g`
`1`	first line	`:1s/old/new/g`
`$`	last line	`:$s/old/new/g`
`.`	current line	`:.w single.txt`
`%`	all lines (same as `1,$`)	`:%s/old/new/g`
`21,25`	lines 21 to 25 inclusive	`:21,25s/old/new/g`
`21,$`	lines 21 to end	`:21,$s/old/new/g`
`.,$`	current line to end	`:.,$s/old/new/g`
`.+1,$`	line after current line to end	`:.+1,$s/old/new/g`
`.,.+5`	six lines (current to current+5 inclusive)	`:.,.+5s/old/new/g`
`.,.5`	same (`.5` is interpreted as `.+5`)	`:.,.5s/old/new/g`

References: