If we want to open multiple command prompts then we could use
start cmd /k
/k: is compulsory which will execute.
Launching many command prompts can be done as below.
start cmd /k Call rc_hub.bat 4444 start cmd /k Call rc_grid1.bat 5555 start cmd /k Call rc_grid1.bat 6666 start cmd /k Call rc_grid1.bat 5570.
The correct way to sleep in a batch file is to use the timeout command, introduced in Windows 2000.
To wait somewhere between 29 and 30 seconds:
timeout /t 30
The timeout would get interrupted if the user hits any key; however, the command also accepts the optional switch /nobreak, which effectively ignores anything the user may press, except an explicit CTRL-C:
timeout /t 30 /nobreak
Additionally, if you don't want the command to print its countdown on the screen, you can redirect its output to NUL:
timeout /t 30 /nobreak > NUL
Using copy command, we can copy files from one directory to another directory. This command is similar to the Linux cp command, but it does not match with the full functionality of cp. Windows copy command can be used to copy files only, we can’t copy directories.
The syntax and usecases of copy command are explained below with examples.
copy sourceFile destinationFile
Example: To copy a file from c:\data\file1.doc to D:\backup\file2.doc
copy c:\data\file1.doc D:\backup\file2.doc
If the destination file already exists you will be prompted for confirmation. To suppress this confirmation you can use /Y switch with copy command. This would be useful if you are executing copy command from a batch file.
