You can control the case, length, quoting, and other aspects of the format of values resolved from variables
| 
                             Option  | 
                        
                             Description  | 
                    
|---|---|
| 
                             .L  | 
                        
                             Lower-case characters  | 
                    
| 
                             .U  | 
                        
                             Upper-case characters  | 
                    
| 
                             .F  | 
                        
                             Combined with L or U, applies conversion to first character  | 
                    
| 
                             .q  | 
                        
                             Enclose the variable between single quotes if it is not already.  | 
                    
| 
                             .Q  | 
                        
                             Enclose the variable between double quotes if it is not already.  | 
                    
| 
                             .T  | 
                        
                             Removes blank spaces  | 
                    
| 
                             .H  | 
                        
                             Converts number to hexadecimal  | 
                    
| 
                             .c  | 
                        
                             Upper-case first letter and lower-case next letters  | 
                    
| 
                             .n  | 
                        
                             Maximum length where n is the number of characters  | 
                    
| 
                             nJ  | 
                        
                             Justifies to fixed length where n is the number of characters  | 
                    
| 
                             -nJ  | 
                        
                             Right justify variable text to fixed length where n is the number of characters  | 
                    
| 
                             width  | 
                        
                             Copies the specified minimum number of characters to the output buffer  | 
                    
| 
                             .[-]precision  | 
                        
                             Copies the specified maximum number of characters to the output buffer  | 
                    
| 
                             M  | 
                        
                             Extracts a portion of the variable name, this option uses the width and precision parameters to identify the portion to extract  |