translate
translate { uc | lc | mc | pc}
This command converts the case of a highlighted region (or the character before the cursor if no region is selected) in the following manner:
• translate uc (uppercase) converts every letter in the region to an uppercase or capital letter.
• translate lc (lowercase) converts every letter in the region to a lowercase letter.
• translate mc (mixed case) capitalizes the first word of every sentence by converting the first character that follows a period, question mark, or exclamation point to a capital letter if it is a letter.
• translate pc (proper case) capitalizes the first letter of every word.
Examples
translate uc
tra lc
tra mc
tra pc