Amadork
asked on
How do you capture the output of a DOS command like "ECHO" in VB.net?
The code below receives an error because the file "echo Hello" can not be found.
How do I run something like this in VB.net and capture the output?
I would like to run something like the following:
setlocal
SET MYVAR=ABCDEFG
SET MYVAR2=DEFGHIJ
RUNMYBAT.BAT
endlocal
I could put this in a batch file and execute the batch file but I am trying to avoid that. It is also important that all the command shares the same "shell" since I will be setting temporary environmental variables.
How do I run something like this in VB.net and capture the output?
I would like to run something like the following:
setlocal
SET MYVAR=ABCDEFG
SET MYVAR2=DEFGHIJ
RUNMYBAT.BAT
endlocal
I could put this in a batch file and execute the batch file but I am trying to avoid that. It is also important that all the command shares the same "shell" since I will be setting temporary environmental variables.
Dim strCmd As String = "echo Hello"
Dim strErr, strOut As String
' Set start information.
Dim start_info As New ProcessStartInfo(strCmd)
start_info.UseShellExecute = False
start_info.CreateNoWindow = True
start_info.RedirectStandardOutput = True
start_info.RedirectStandardError = True
' Make the process and set its start information.
Dim proc As New Process
proc.StartInfo = start_info
' Start the process.
proc.Start()
' Attach to stdout and stderr.
Dim std_out As StreamReader = proc.StandardOutput()
Dim std_err As StreamReader = proc.StandardError()
' Display the results.
strErr = std_out.ReadToEnd()
strOut = std_err.ReadToEnd()
' Clean up.
std_out.Close()
std_err.Close()
proc.Close()
MsgBox(strErr)
MsgBox(strOut)
Last Comment
i can do some test, if you are too lazy ;P
ASKER
If there isn't a way to capture the output in VB.net, then its not what I'm looking for.
If the run command in vbscript is anything like the run command in vb.net, you can't capture that ouput without redirecting the DOS prompt, which really won't accomplish what I am looking for.
And, no, I'm not "too lazy" to test it. I've been searching the net for a good 2 hours trying to find what I'm looking for.
In case someone knows how to convert it, here is a function in vbscript that does what I want.
If the run command in vbscript is anything like the run command in vb.net, you can't capture that ouput without redirecting the DOS prompt, which really won't accomplish what I am looking for.
And, no, I'm not "too lazy" to test it. I've been searching the net for a good 2 hours trying to find what I'm looking for.
In case someone knows how to convert it, here is a function in vbscript that does what I want.
Sub logExec(strCommand)
'INPUT: strCommand = A command to run at a DOS prompt
'OUTPUT: The output of the resulting command sent to both the screen and the log file.
' This captures both the stdout stream and the stderr stream
dim objShell, objExecObject, strOutput
WScript.Echo strCommand
writelog "logExec", "Command: " & strCommand
Set objExecObject = oShell.Exec(strCommand)
writelog "logExec", "-------- Start LogExec Output --------"
Do Until objExecObject.StdOut.AtEndOfStream
strOutput = objExecObject.StdOut.ReadLine()
writelog "logExec", strOutput
WScript.Echo strOutput
loop
Do Until objExecObject.StdErr.AtEndOfStream
strOutput = objExecObject.StdErr.ReadLine()
writelog "logExec", strOutput
WScript.Echo strOutput
loop
writelog "logExec", "-------- End LogExec Output --------"
end sub
i always tought vbscript was really easy to convert in vb...
(i converted a lot of vba to vb and vb to vba and vb to vbscript)
just add a few dim for variables and for objects
add the variables types after the dim(s)
add the libraries before compiling (windows shell (maybe just windows scripts))
i cannot do it right now, my visual studio is not installed here, just at my job :(
(i converted a lot of vba to vb and vb to vba and vb to vbscript)
just add a few dim for variables and for objects
add the variables types after the dim(s)
add the libraries before compiling (windows shell (maybe just windows scripts))
i cannot do it right now, my visual studio is not installed here, just at my job :(
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im not into vb.net but a good way would be to send the output to a text file and then call it
example:
dont know if you can use Shell in vb .net
shell "netstat -an > textfile.txt"
then you have to load the file and thats more easier i thing :D
example:
dont know if you can use Shell in vb .net
shell "netstat -an > textfile.txt"
then you have to load the file and thats more easier i thing :D
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it's capturing the error from cacls in vbscript
i dont know if it can capture a text, but it should get you on the way to find how to capture more
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