From Windows 10, launch two cmd.exe windows.
From the first cmd.exe window, type;
In the second cmd.exe window, type;
WaitFor /SI Complete
You have now sent a signal from one cmd.exe window to a second cmd.exe window using WaitFor
Code: Select all
WaitFor has two ways of working:
Syntax 1: to send a signal
WAITFOR [/S system [/U user [/P [password]]]] /SI signal
Syntax 2: to wait for a signal
WAITFOR [/T timeout] signal
This tool sends, or waits for, a signal on a system. When /S is not
specified, the signal will be broadcasted to all the systems in a
domain. If /S is specified, then the signal will be sent only
to the specified system.
/S system Specifies remote system to send signal to.
/U [domain\]user Specifies the user context under which
the command should execute.
/P [password] Specifies the password for the given user context.
/SI Sends the signal across the net to waiting machines
/T timeout Number of seconds to wait for signal. Valid range
is 1 - 99999. Default is to wait forever for signal.
signal The name of the signal to wait for or to send.
/? Displays this help message.
NOTE: A system can wait for multiple unique signal names.
The signal name cannot exceed 225 characters and cannot
contain characters other than a-z, A-Z, 0-9 and ASCII
characters in the range 128-255.
WAITFOR CopyDone /T 100
WAITFOR /SI SetupReady
WAITFOR /S system /U user /P password /SI CopyDone
Looking at the help for WaitFor, you can send a signal to another system;
...where you replace the "OtherSystem" with the name of the system you want to send a signal to.