Thread from comp.lang.tcl (5 replies)
how to pass /E:ON argument to cmd.exe using exec (Windows)
For a change of pace, this will not be a Tcl 9 question (I'm using 8.6.14).
Using tclsh, why does this succeed:
exec -- cmd /C dir
but this fails:
exec -- cmd /C /E:ON dir
with this message :
"The filename, directory name, or volume label syntax is incorrect."
I'm guessing that "exec" is treating /E:ON as a file spec (the colon
maybe?) and then changes it somehow.
A followup question is how can I see what string is being presented to
to Windows?
Thanks for answering.
-mike
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Re: how to pass /E:ON argument to cmd.exe using exec (Windows)
Nothing to do with Tcl 8.6 either :-) From the DOS prompt: D:\src\tcl-csv\library>cmd /C /E:ON dir The filename, directory name, or volume label syntax is incorrect. The /C needs to be before dir D:\src\tcl-csv\library>cmd /E:ON /C dir Volume in drive D is DATA Volume Serial Number is 8245-4F72 Directory of D:\src\tcl-csv\library ..... On 9/30/2024 9:05 PM, Michael Soyka wrote: > For a change of pace, this will not be a Tcl 9 question (I'm using 8.6.14). > > Using tclsh, why does this succeed: > exec -- cmd /C dir > > but this fails: > exec -- cmd /C /E:ON dir > > with this message : > "The filename, directory name, or volume label syntax is incorrect." > > I'm guessing that "exec" is treating /E:ON as a file spec (the colon > maybe?) and then changes it somehow. > > A followup question is how can I see what string is being presented to > to Windows? > > Thanks for answering. > > -mikeClick on article to view all threads in comp.lang.tcl
Re: how to pass /E:ON argument to cmd.exe using exec (Windows)
Once again, read the fine manual before blaming Tcl! Thanks Ashok! And by the way, I love your book! -mike On 09/30/2024 12:34 PM, Ashok wrote: > Nothing to do with Tcl 8.6 either :-) > > > From the DOS prompt: > > D:\src\tcl-csv\library>cmd /C /E:ON dir > The filename, directory name, or volume label syntax is incorrect. > > The /C needs to be before dir > > D:\src\tcl-csv\library>cmd /E:ON /C dir > Volume in drive D is DATA > Volume Serial Number is 8245-4F72 > > Directory of D:\src\tcl-csv\library > .... > > > > > On 9/30/2024 9:05 PM, Michael Soyka wrote: >> For a change of pace, this will not be a Tcl 9 question (I'm using >> 8.6.14). >> >> Using tclsh, why does this succeed: >> exec -- cmd /C dir >> >> but this fails: >> exec -- cmd /C /E:ON dir >> >> with this message : >> "The filename, directory name, or volume label syntax is incorrect." >> >> I'm guessing that "exec" is treating /E:ON as a file spec (the colon >> maybe?) and then changes it somehow. >> >> A followup question is how can I see what string is being presented to >> to Windows? >> >> Thanks for answering. >> >> -mike >Click on article to view all threads in comp.lang.tcl
Re: how to pass /E:ON argument to cmd.exe using exec (Windows)
On 9/30/2024 8:35 AM, Michael Soyka wrote: > > A followup question is how can I see what string is being presented to to Windows? > My goto tool is process explorer, much more detailed that windows task manager, just hover mouse over any process and it will tell you the command line that was ultimately received (or click and choose properties) https://learn.microsoft.com/en-us/sysinternals/downloads/process-explorer This is a no-install program, you can just run it. Using twapi, and if you exec with & you will get the pid, you can then use: twapi::get_process_commandline PID ?options? -eClick on article to view all threads in comp.lang.tcl
Re: how to pass /E:ON argument to cmd.exe using exec (Windows)
On 9/30/2024 11:15 AM, et99 wrote: > On 9/30/2024 8:35 AM, Michael Soyka wrote: > >> >> A followup question is how can I see what string is being presented to to Windows? >> > > My goto tool is process explorer, much more detailed that windows task manager, just hover mouse over any process and it will tell you the command line that was ultimately received (or click and choose properties) > > https://learn.microsoft.com/en-us/sysinternals/downloads/process-explorer > > This is a no-install program, you can just run it. > > Using twapi, and if you exec with & you will get the pid, you can then use: > > twapi::get_process_commandline PID ?options? > > > -e > Hmmm, it just occurred to me that if the process dies immediately, you might not have a chance with process explorer, and don't know if the get_process_commandline will be quick enough either.Click on article to view all threads in comp.lang.tcl
Re: how to pass /E:ON argument to cmd.exe using exec (Windows)
On 09/30/2024 2:33 PM, et99 wrote: > On 9/30/2024 11:15 AM, et99 wrote: >> On 9/30/2024 8:35 AM, Michael Soyka wrote: >> >>> >>> A followup question is how can I see what string is being presented >>> to to Windows? >>> >> >> My goto tool is process explorer, much more detailed that windows task >> manager, just hover mouse over any process and it will tell you the >> command line that was ultimately received (or click and choose >> properties) >> >> https://learn.microsoft.com/en-us/sysinternals/downloads/process-explorer >> >> This is a no-install program, you can just run it. >> >> Using twapi, and if you exec with & you will get the pid, you can then >> use: >> >> twapi::get_process_commandline PID ?options? >> >> >> -e >> > Hmmm, it just occurred to me that if the process dies immediately, you > might not have a chance with process explorer, and don't know if the > get_process_commandline will be quick enough either. > Yes, in my case, the process would die almost immediately but, if /K is used instead of /C, the process does hang around and your suggestions would work. Thanks for the advice. -mikeClick on article to view all threads in comp.lang.tcl