Awk primeiro superior
echo example | awk '{$1=toupper(substr($1,0,1))substr($1,2)}1'
Example #Example first upppercased outputed
Armandres
echo example | awk '{$1=toupper(substr($1,0,1))substr($1,2)}1'
Example #Example first upppercased outputedecho EXAMPLE | awk '{$1=tolower(substr($1,0,1))substr($1,2)}1'
eXAMLPLE #Example first lowercased outputed