How to wait for a process to terminate to execute another process in batch file
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How to wait for a process to terminate before executing another process in a batch file? Let's say I have a process
notepad.exe that I need to kill before executing
wordpad.exe. Then, when
wordpad.exe is terminated, I need to launch
notepad.exe again. How do I do that?
Try something like this...
@ECHO OFF PSKILL NOTEPAD START "" "C:\Program Files\Windows NT\Accessories\wordpad.exe" :LOOP PSLIST wordpad >nul 2>&1 IF ERRORLEVEL 1 ( GOTO CONTINUE ) ELSE ( ECHO Wordpad is still running TIMEOUT /T 5 GOTO LOOP ) :CONTINUE NOTEPAD
PSEXEC, but you could also use
>nul 2>&1 is just there to hide all the output from
SLEEP 5 line is not required, but is just there to restrict how often you check if WordPad is still running.
Batch file wait for another processes to finish before continuing , then the for loop will wait until all of the processes are running before proceeding. filename2 contains the kill commands required ( echo ed for How to wait for a process to terminate before executing another process in a batch file? Let's say I have a process notepad.exe that I need to kill before executing wordpad.exe . Then, when wordpad.exe is terminated, I need to launch notepad.exe again.
Use start /w programname to wait for the end of programname
START /W notepad ECHO Back from notepad START /W wordpad ECHO Back from wordpad START /W notepad
How do you wait for an exe to complete in batch file?, If the exe you call then creates other process, such as calling another exe, and then exits the batch file will continue processing after the called exe has terminated, Remove the start command to run the batch file in the foreground - then, waitFor () will wait for the batch file completion: Process p = Runtime.getRuntime().exec("cmd /c " + path + "\\RunFromCode.bat"); According to OP, it is important to have the console window available - this can be done by adding the /wait parameter, as suggested by @Noofiz.
This is an updated version of aphoria's Answer.
I Replaced PSLIST and PSEXEC with TASKKILL and TASKLIST`. As they seem to work better, I couldn't get PSLIST to run in Windows 7.
Also replaced Sleep with TIMEOUT.
This Was everything i needed to get the script running well, and all the additions was provided by the great guys who posted the comments.
Also if there is a delay before the .exe starts it might be worth inserting a Timeout before the :loop.
@ECHO OFF TASKKILL NOTEPAD START "" "C:\Program Files\Windows NT\Accessories\wordpad.exe" :LOOP tasklist | find /i "WORDPAD" >nul 2>&1 IF ERRORLEVEL 1 ( GOTO CONTINUE ) ELSE ( ECHO Wordpad is still running Timeout /T 5 /Nobreak GOTO LOOP ) :CONTINUE NOTEPAD
[SOLVED] Batch file not waiting for completion before starting next , I used notepad.exe as my placeholder process, but you'll need to write in whatever appears in the task manager when. start /wait cmd /k "c:\citrix.ica && exit". The most obvious way to pause a batch file is of course the PAUSEcommand. This will stop execution of the batch file until someone presses "any key". Well, almostany key: Ctrl, Shift, NumLock etc. won't work.
I liked the "START /W" answer, though for my situation I found something even more basic. My processes were console applications. And in my ignorance I thought I would need something special in BAT syntax to make sure that the 1st one completed before the 2nd one started. However BAT appears to make a distinction between console apps and windows apps, and it executes them a little differently. The OP shows that window apps will get launched as an asynchronous call from BAT. But for console apps, that are invoked synchronously, inside the same command window as the BAT itself is running in.
For me it was actually better not to use "START /W", because everything could run inside one command window. The annoying thing about "START /W" is that it will spawn a new command window to execute your console application in.
How to wait for a process to terminate to execute another - iOS, How to wait for a process to terminate before executing another process in a batch file? Let's say I have a process notepad.exe that I need to kill before executing PowerShell. PS C:\> $nid = (Get-Process notepad).id PS C:\> Stop-Process -Id $nid PS C:\> Wait-Process -Id $nid. This example stops the Notepad process and then waits for the process to be stopped before it continues with the next command.
This works and is even simpler. If you remove ECHO-s, it will be even smaller:
REM REM DEMO - how to launch several processes in parallel, and wait until all of them finish. REM @ECHO OFF start "!The Title!" Echo Close me manually! start "!The Title!" Echo Close me manually! :waittofinish echo At least one process is still running... timeout /T 2 /nobreak >nul tasklist.exe /fi "WINDOWTITLE eq !The Title!" | find ":" >nul if errorlevel 1 goto waittofinish echo Finished! PAUSE
Start - Start a program - Windows CMD, The process will be restricted to running on these processors. In a batch script, a START command without /wait will run the program and just batch script from another without using either CALL or START, then the first script is terminated The Kill method executes asynchronously. After calling the Kill method, call the WaitForExit method to wait for the process to exit, or check the HasExited property to determine if the process has exited. Note. The WaitForExit method and the HasExited property do not reflect the status of descendant processes.
How do I make a batch file that started a process to wait for the , create batch like this: title i'm waiting start /wait /high cmd /ktitle kill me echo This is the end pause. you can see how work start command with There are two commands used to kill a process: kill – Kill a process by ID. killall – Kill a process by name. There are also different signals that can be sent to both kill commands. What signal you send will be determined by what results you want from the kill command. For instance, you can send the HUP (hang up) signal to the kill command
How to stop a bat process on Windows?, To stop the batch file from executing, just delete the lock-file. Here is a of CMD.exe. Depending on what your script does, it will also start other processes. A process executes until one of the following events occurs: Any thread of the process calls the ExitProcess function. Note that some implementation of the C run-time library (CRT) call ExitProcess if the primary thread of the process returns. The last thread of the process terminates.
Stop-Process, The Stop-Process cmdlet stops one or more running processes. You can specify a process by process name or process ID (PID), or pass a process object to Wait indefinitely for the other application to either finish or be closed by the user. Specify a time-out period after which you can close the application from your code. This article presents two code samples that demonstrate both approaches.
- @sarnold The problem is that Win32 is ... Win32. Some programs (like write) will detach from the parent process, while other programs (like notepad) do not.
- @pst: I thought you had to specifically use
startto get the detachment... Oh wow. That's horrible.
- @sarnold Oops: notepad doesn't detach, write does. It's something relating to the write program, not necessarily Win32, although many UI programs (not meant to be called from a shell) seem to work like this. I am fairly certain
CreateProcessis related though.
- @Apoc I would include a time-line explanation of what goes on, with a sample script with echos between the process to show detachment that occurs. Without the detaching the processes would run sequentially.
- It looks like
TASKLISTdoesn't set the
ERRORLEVE. You can pipe the output of
FINDas a workaround. Something like this,
TASKLIST | FIND /I "wordpad".
- This is pretty weak. Use
start /waitlike nature intended.
START /WAITis fine if you want everything to stop until the process completes. My simple example doesn't really show it, but you can use this technique to kick-off a process and then do some other stuff, but not go on after a certain point until that first process has ended.
- This also works if the batch file didn't start the process, which is handy sometimes.
- I have a windows service deployment script that stops a service, then deploys the files, but the .exe hasn't always completely exited after the net stop call finishes, and the files are locked. This approach is exactly what I needed to ensure the service has actually stopped before copying the files. Thanks.
- This is much simpler than a complete batch and works perfectly. Note that you will need to add the title argument if using quotes for your program name. See
help startfor more info.
- Actually, why do you need
start /wat all? I myself believed it's needed to use
start /wto block batch file until GUI (as opposite to a console) application finishes. But testing it now, I see that batch files actually wait even for GUI applications. I have posted corresponding question: Why GUI application blocks a batch file?
- This solution is good only when the batch file is also starting the process and not checking for an existing process.
- This doesn't work if you want to start two or more processes at the same time and wait for all of them to complete. That's why Mitch Buz Stringer's answer is more desirable IMO.