每天一个vim小技巧[6] - Case relative

case switch:

U   : Change to upper case.
u   : Change to lower case.
~.  : Toggle case.

examples:

 ~    : Changes the case of current character
 guu  : Change current line from upper to lower.
 gUU  : Change current LINE from lower to upper.
 guw  : Change to end of current WORD from upper to lower.
 guaw : Change all of current WORD to lower.
 gUw  : Change to end of current WORD from lower to upper.
 gUaw : Change all of current WORD to upper.
 g~~  : Invert case to entire line
 g~w  : Invert case to current WORD
 guG  : Change to lowercase until the end of document.
 gU)  : Change until end of sentence to upper case
 gu}  : Change to end of paragraph to lower case
 gU5j : Change 5 lines below to upper case
 gu3k : Change 3 lines above to lower case