@TLOWER[string] : Returns the number of lower case letters in string.

 

See also: @TALNUM, @TALPHA, @TASCII, @TCNTRL, @TDIGIT, @TPRINT, @TPUNCT, @TSPACE, @TUPPER, and @TXDIGIT.

 

Example:

 

echo %@tlower[hello]

5

 

echo %@tlower[Hello]

4