Re: How do I execute dos command without a path
From: PAPutzback (Phillip_Putzback_at_insightbb.com)
Date: 12/16/04
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Date: Thu, 16 Dec 2004 11:17:08 -0500
PAPutzback wrote:
> Herfried K. Wagner [MVP] wrote:
>
>> "PAPutzback" <phillip_putzback@insightbb.com> schrieb:
>>
>>> The process and execute methods want a path to the executable otherwise
>>> they kick out a file not found. So how can I execute the following. It
>>> works fine from a command window.
>>>
>>> echo password| gpg.exe --yes --output c:\working\inbound\test.txt
>>> --passphrase 0 -d c:\working\inbound\anstest.gpg
>>
>>
>>
>> Are you sure you specified everything after "pgp.exe" in the
>> 'ProcessStartInfo''s 'Arguments' property instead of appending it to
>> the 'FileName' property?
>>
>
> No arguments -Error: cannot find file specified
> System.Environment.CurrentDirectory = "c:\gnupg"
> GPGProcess.StartInfo.WorkingDirectory = "c:\gnupg"
> GPGProcess.StartInfo.FileName = "echo little boy blue| gpg"
> GPGProcess.StartInfo.CreateNoWindow = True
> GPGProcess.StartInfo.UseShellExecute = False
> GPGProcess.Start()
>
> No space between pipe and the exectuble = same error
>
> Add .exe = same error
>
> Add the full path "echo little boy blue| c:\gnupg\gpg.exe" = same error
>
> Paste this into a cmd window
>
> C:\gnupg>echo little boy blue| c:\gnupg\gpg.exe
> gpg: no valid OpenPGP data found.
> gpg: processing message failed: eof
>
> I know the command is valid and this variation works also
> C:\gnupg>echo little boy blue| gpg.exe
> gpg: no valid OpenPGP data found.
> gpg: processing message failed: eof
>
> And also
> C:\gnupg>echo little boy blue| gpg
> gpg: no valid OpenPGP data found.
> gpg: processing message failed: eof
>
> Put the arguments on
> C:\gnupg>echo little boy blue| gpg --passphrase-fd 0 -d
> c:\gnupg\anstest.gpg
> Reading passphrase from file descriptor 0
>
> You need a passphrase to unlock the secret key for
> user: "Indiana Prohealth <admin@ecommunity.com>"
> 1024-bit ELG-E key, ID 778EBE0E, created 2004-12-07 (main key ID FA28FB8B)
>
> gpg: encrypted with 1024-bit ELG-E key, ID 778EBE0E, created 2004-12-07
> "Indiana Prohealth <admin@ecommunity.com>"
> This is a test of the emergency broadcast system...
>
> BEEEEEEEEEEEEEEEEEEEEEEEPPPPPPPPPPPPPPPPPP!!!!!
>
> Testing 1,2,3...
>
> Testing 1,2,3...
>
> Testing 1,2,3...
>
> Testing 1,2,3...
>
> Testing 1,2,3...
>
> And it all works.
>
> Is there not a straight up way to fire off a command like you were in
> the command window?
>
> I appreciate your help with this because I am really stressed about
> this. It is the final link in an app I need to finish.
>
Now without the echo command
System.Environment.CurrentDirectory = "c:\gnupg"
GPGProcess.StartInfo.WorkingDirectory = "c:\gnupg"
GPGProcess.StartInfo.FileName = "gpg.exe"
GPGProcess.StartInfo.CreateNoWindow = True
GPGProcess.StartInfo.UseShellExecute = False
GPGProcess.Start()
No errors and the gpg process is running in Task manager
With the arguments
GPGProcess.StartInfo.Arguments = "--yes --output c:\gnupg\test.txt
--passphrase-fd 0 < c:\gnupg\gpg\password.txt --decrypt
c:\gnupg\anstest.gpg"
It is running in task manager but it did not create the file
If I change GPGProcess.StartInfo.CreateNoWindow = false
I get this and it just hangs there.
Reading passphrase from file descriptor 0 ...
If I change the arguments to
GPGProcess.StartInfo.Arguments = "--yes --output c:\gnupg\test.txt
--decrypt c:\gnupg\anstest.gpg"
I get the passphrase prompt
If I add
GPGProcess.StartInfo.RedirectStandardInput = True
GPGProcess.Start()
GPGProcess.StandardInput.Write("little boy blue")
GPGProcess.StandardInput.Flush()
GPGProcess.StandardInput.Close()
It still hangs at the passphrase prompt
-Phil
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