I have a simple batch file which invokes Java to run a conversion algorithm, this works just fine, but I can't seem to get it work within Tcl.

batch file is:

cd c:/Users/Downloads/Fit_files
java -jar C:\Users\Downloads\__Installation_files\FitSDKRelease_21.67.00\java\FitCSVTool.jar -b C:\Users\Downloads\Fit_files\FIT2CSV\INFILE.fit C:\Users\Downloads\Fit_files\FIT2CSV\OUTFILE.csv

But I can't seem to invoke Java from within Tcl?
What do I need to do please?

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On 2/11/2022 12:23 PM, jtyler wrote:

On 2/11/2022 10:34 AM, snosniv wrote:

I have a simple batch file which invokes Java to run a conversion
algorithm, this works just fine, but I can't seem to get it work
within Tcl.

batch file is:

cd c:/Users/Downloads/Fit_files
java -jar
C:\Users\Downloads\__Installation_files\FitSDKRelease_21.67.00\java\FitCSVTool.jar
-b C:\Users\Downloads\Fit_files\FIT2CSV\INFILE.fit
C:\Users\Downloads\Fit_files\FIT2CSV\OUTFILE.csv

But I can't seem to invoke Java from within Tcl?
What do I need to do please?

Have you tried:

exec cmd.exe /c <path-to>test.bat &

or if you need the process id,

set pid [exec cmd.exe /c <path-to>test.bat &]

These assume you don't want to wait for it to finish, hence the &

Oh, the pid will be the id of the batch job, not the javaw.exe, so
probably not that useful.

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On 2/11/2022 10:34 AM, snosniv wrote:

I have a simple batch file which invokes Java to run a conversion algorithm, this works just fine, but I can't seem to get it work within Tcl.

batch file is:

cd c:/Users/Downloads/Fit_files
java -jar C:\Users\Downloads\__Installation_files\FitSDKRelease_21.67.00\java\FitCSVTool.jar -b C:\Users\Downloads\Fit_files\FIT2CSV\INFILE.fit C:\Users\Downloads\Fit_files\FIT2CSV\OUTFILE.csv

But I can't seem to invoke Java from within Tcl?
What do I need to do please?

Have you tried:

exec cmd.exe /c <path-to>test.bat &

or if you need the process id,

set pid [exec cmd.exe /c <path-to>test.bat &]


These assume you don't want to wait for it to finish, hence the &

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On Friday, February 11, 2022 at 10:35:00 AM UTC-8, snosniv wrote:

I have a simple batch file which invokes Java to run a conversion algorithm, this works just fine, but I can't seem to get it work within Tcl.

batch file is:

cd c:/Users/Downloads/Fit_files
java -jar C:\Users\Downloads\__Installation_files\FitSDKRelease_21.67.00\java\FitCSVTool.jar -b C:\Users\Downloads\Fit_files\FIT2CSV\INFILE.fit C:\Users\Downloads\Fit_files\FIT2CSV\OUTFILE.csv

But I can't seem to invoke Java from within Tcl?
What do I need to do please?

You have to take care with file path names in Tcl. The syntax for a pathname is different from a cmd shell. The backslash character (\) is used as an escape character, so in Tcl, to use it in a path name, the character must be escaped:

java -jar c:\\Users\\Downloads\\__Installation_files\\FitSDKRelease_21.67.00\\java\\FitCSVTool.jar -b C:\\Users\\Downloads\\Fit_files\\FIT2CSV\\INFILE.fit C:\\Users\\Downloads\\Fit_files\FIT2CSV\OUTFILE.csv

Or you can essentially escape the entire path using braces ({}):
java -jar {C:\Users\Downloads\__Installation_files\FitSDKRelease_21.67.00\java\FitCSVTool.jar} -b {C:\Users\Downloads\Fit_files\FIT2CSV\INFILE.fit} {C:\Users\Downloads\Fit_files\FIT2CSV\OUTFILE.csv}

Or you can use forward slashes (/):
java -jar C:/Users/Downloads/__Installation_files/FitSDKRelease_21.67.00/java/FitCSVTool.jar -b C:/Users/Downloads/Fit_files/FIT2CSV/INFILE.fit C:/Users/Downloads/Fit_files/FIT2CSV/OUTFILE.csv

Of course in order to run any external program, the [exec] command should be used:

exec java -jar ...

To capture any return values, use the [set] command:

set return_value [exec java -jar ...]

Also, you can verify that Tcl can find the program using the [autoexec_ok] command:
if {[autoexec_ok java] ne ""} {
set return_value [exec java -jar ...]
}

-Brian

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On Saturday, 12 February 2022 at 22:50:10 UTC, briang wrote:

On Friday, February 11, 2022 at 10:35:00 AM UTC-8, snosniv wrote:

I have a simple batch file which invokes Java to run a conversion algorithm, this works just fine, but I can't seem to get it work within Tcl.

batch file is:

cd c:/Users/Downloads/Fit_files
java -jar C:\Users\Downloads\__Installation_files\FitSDKRelease_21.67.00\java\FitCSVTool.jar -b C:\Users\Downloads\Fit_files\FIT2CSV\INFILE.fit C:\Users\Downloads\Fit_files\FIT2CSV\OUTFILE.csv

But I can't seem to invoke Java from within Tcl?
What do I need to do please?

You have to take care with file path names in Tcl. The syntax for a pathname is different from a cmd shell. The backslash character (\) is used as an escape character, so in Tcl, to use it in a path name, the character must be escaped:

java -jar c:\\Users\\Downloads\\__Installation_files\\FitSDKRelease_21.67.00\\java\\FitCSVTool.jar -b C:\\Users\\Downloads\\Fit_files\\FIT2CSV\\INFILE.fit C:\\Users\\Downloads\\Fit_files\FIT2CSV\OUTFILE.csv

Or you can essentially escape the entire path using braces ({}):
java -jar {C:\Users\Downloads\__Installation_files\FitSDKRelease_21.67.00\java\FitCSVTool.jar} -b {C:\Users\Downloads\Fit_files\FIT2CSV\INFILE.fit} {C:\Users\Downloads\Fit_files\FIT2CSV\OUTFILE.csv}
Or you can use forward slashes (/):
java -jar C:/Users/Downloads/__Installation_files/FitSDKRelease_21.67.00/java/FitCSVTool.jar -b C:/Users/Downloads/Fit_files/FIT2CSV/INFILE.fit C:/Users/Downloads/Fit_files/FIT2CSV/OUTFILE.csv

Of course in order to run any external program, the [exec] command should be used:

exec java -jar ...

To capture any return values, use the [set] command:

set return_value [exec java -jar ...]

Also, you can verify that Tcl can find the program using the [autoexec_ok] command:
if {[autoexec_ok java] ne ""} {
set return_value [exec java -jar ...]
}

-Brian

Ah, hadn't thought about the escape, Doh. Thanks for the tip (I haven't dabbled in Tcl for a few years since I retired, but have something at home I want to do).

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