This is my practice and research how the batch file usage.
I am refer the script from Honguito98/batch-game-flappy-bird for this practical.
Thanks for the Honguito98.
Command prompt is a terminal that using instruction to interact with operating system.
The instruction and command can be refer by using a help command,
but the operator and operation theory is not that clearly when refer to the help command.
So, I organized these may not common used operator, but it useful to improve the efficiency of batch script.
| operator | introduce |
|---|---|
| ( ) | Grouping is helps to group command into a execution. Example, the line 57-60 is used to group command, and output the result into a file. |
| ^ | This operator is use to join next line or enable literal characters instead of operator characters such as "&" or "|". For example, The line of 72-76 is joining next line of code, the line of 11 is literal charactor instead of the operator charactor. |
| && | This operator is used to execute first command and second command with sequence. When the command fail, the instruction will stop executing. |
| || | This operator is used to execute second command when the first command fail. |
| ANSI escape code | ANSI escape code is useful to display your output result. For example, where you want to a Bell sound, hide cursor, change text and backgound color, or output the result to a specify location etc. |