Calibre CLI act oddly in Windows Batch

slm · 10-02-2021, 12:44 PM

I've had an odd experience running the Calibre CLI in a bat file on Windows 10.

The file has three lines:
1. shut down running instances of Calibre ("calibre.exe --shutdown-running-calibre"
2. create a new catalog
3. restart Calibre in the tray ("calibre.exe --start-in-tray" ).

The batch file works as expected but it doesn't terminate: the last command
"calibre.exe --start-in-tray" runs and the window batch window stays open--the batch file never gets to the final line ("pause" or "exit").

It does this whether or not the "--start-in-tray" flag is present.

As I said, this doesn't mess up what I'm trying to do, but it seems to be the wrong behavior for a bat file.

Am I missing something?

georgemk · 10-02-2021, 03:42 PM

You need to use the command "start" which will allow you to execute a program and then immediately exit the batch file leaving the program running.

Quote:

START

Start a program, command or batch script, opens in a new window.

Syntax
START "title" [/D path] [options] "command" [parameters]

More at https://ss64.com/nt/start.html - no affiliation with this site, just came up in Google results

slm · 10-02-2021, 05:22 PM

Many thanks. You are of course correct that "Start" is the right way to do this.

I've never actually has to use "Start" before. In my experience, most programs open and pass execution to the next line without using it.

For example, if I use the same method to open Chrome:

"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"

Chrome opens and the bat files continues on to the next line.

I wonder why some programs stop the bat file from going on and some don't.

10-02-2021, 12:44 PM	#1
slm Fool Posts: 391 Karma: 3557934 Join Date: Feb 2003 Device: Kindle: Voyage,PW1,KOA, Kobo: Clara Colour, Nook GLP, Pocketbook verse	Calibre CLI act oddly in Windows Batch I've had an odd experience running the Calibre CLI in a bat file on Windows 10. The file has three lines: 1. shut down running instances of Calibre ("calibre.exe --shutdown-running-calibre" 2. create a new catalog 3. restart Calibre in the tray ("calibre.exe --start-in-tray" ). The batch file works as expected but it doesn't terminate: the last command "calibre.exe --start-in-tray" runs and the window batch window stays open--the batch file never gets to the final line ("pause" or "exit"). It does this whether or not the "--start-in-tray" flag is present. As I said, this doesn't mess up what I'm trying to do, but it seems to be the wrong behavior for a bat file. Am I missing something?

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10-02-2021, 05:22 PM	#3
slm Fool Posts: 391 Karma: 3557934 Join Date: Feb 2003 Device: Kindle: Voyage,PW1,KOA, Kobo: Clara Colour, Nook GLP, Pocketbook verse	Many thanks. You are of course correct that "Start" is the right way to do this. I've never actually has to use "Start" before. In my experience, most programs open and pass execution to the next line without using it. For example, if I use the same method to open Chrome: "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" Chrome opens and the bat files continues on to the next line. I wonder why some programs stop the bat file from going on and some don't.

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