 
  Enter the DOS command line you want to test with Modify
COMMAND$ (for use with the COMMAND$ function).
 
┌────────Modify COMMAND$───────┐
│   Enter text for COMMAND$:   │
│                              │
│ ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒◄── Enter up to 127
│                              │  characters here,
│  <OK>                        │  then choose <OK>.
└──────────────────────────────┘