Ok, so in VB, I create and run a batch file. Pretty simple.
The problem is, the batch file starts another program that runs through cmd.
I want to get the output from the cmd program the batch file starts, any ideas?
Someone earlier said that i could do somthing with command parameters,
could you explain that to me if that is right?
I ask that you are not particularly harsh in giving a downvote becasue the question is worded very vaugue. To me it sounds like you are looking for something like this.
#echo hello >> log.txt
What this is going to do is force the output of whatever command you have typed to be sent into a text file named log.txt.
I have created a very useful application where I record network activity on my home network and save it into a log file using the same overall idea so I know it can be useful.
I'm running a process in a screen (on Ubuntu 13.10, if it matters). I can execute a command within that screen with:
screen -p 0 -X eval 'stuff \"$command\"\015'
I'm not 100% sure what this command is doing to begin with, though it's functioning correctly. The reason behind it is I'm running a Minecraft server (still) and this screens in to the correct screen, and throws the command on the running command line. So that's good, so far.
But what I'd like is to be able to run this command with a return value. So for example, if I were to run a "list" command, it'd tell me how many people and who is online, but I need to capture that output and put it somewhere.
Anyone know of a way to accomplish this? I can't tell the minecraft server command line to redirect the output somewhere else since it doesn't have direct command line access, so the only way I could do this would be to grab all output of the screen while I'm connected ... but I'm not sure if that's possible.
I think you may be able to view the logs? can you not view a running log of the server ?
I have this code which gives me all of the information I need regarding tasks, information etc. I have it all shelled into a VB program and I want to be able to run this from one computer and have it return the data from all computers on the domain.
I am lost as to what to add next.
Dim sCommand As String
'all processes here, ipconfig, java info, etc etc
sCommand = "java.exe -version2 > C:\Info.txt && ipconfig >> C:\INfo.txt"
Shell("cmd.exe /c" & sCommand)
I have script that will list all users on the domain, can I implement that or is there an easier way?
Edit: If I could search the entire domain for a specific file that would work too.
At the moment I just need all the data returned to a text file, I am not worried about it being sorted, or how long a process like this would take.
thanks a bunch
You could do one of two things.
1) You could use WMI to get both the network config off the remote machines and execute a process on the remote machine.
Or
2) You could use PsExec to kick off a command on a remote machine and pipe that out. I personally wouldn't use shell to execute a command as it's pretty poor really. If I was going to kick off a process locally I'd use this, and use StdOut to grab the output from the shell, parse it to give you something you can work with instead of piping the output to a file locally and then reading it later.
EDIT
So you want to do all this from one central location? If you don't want to use PSExec, you'll have to use WMI to create a process on a remote machine to run the java.exe, but you can't redirect the output, you'll have to pipe to a file and read the file in another step.
So I'm looking here and I see the command line switches. http://mono-project.com/Command_Line_MoMA
This is what I see as the total amount of switches from the site:
MoMA.exe --nogui --out C:\app\momareport\report.html C:\app\myapp.exe
One thing I see is the submit.xml going to a place I don't want during my automated build. Since it is a generated file, I want to change where it goes. Is there a switch for that?
Also, what are all of the switches for it?
If there is not a switch for moving the submit.xml to a reporting location, please consider it for future versions.
EDIT: The argument --help does not work. I tried that and a host of others to try to get some dialog from MoMA on the command line. I'm on Windows to help alleviate any confusion.
Those are the only command line switches supported by MoMA. You can see the code here.
"MoMA.exe --help" does not work because MoMA is compiled as a winforms application so that the command window is not shown. As a result, MoMA disconnects from the command window, and therefore things like Console.WriteLine will not work.
To answer your actual question, there is currently not a way to change where the .xml file gets put.
You might want to try:
MoMA.exe --help
On Linux, there should also be a manpage.
If you can't find the feature, and want to submit it to Mono, you'll want to go via the Bugzilla page.
Is there a way to force a Samba process to close a given file without killing it?
Samba opens a process for each client connection, and sometimes I see it holds open files far longer than needed. Usually i just kill the process, and the (windows) client will reopen it the next time it access the share; but sometimes it's actively reading other file for a long time, and i'd like to just 'kill' one file, and not the whole connection.
edit: I've tried the 'net rpc file close ', but doesn't seem to work. Anybody knows why?
edit: this is the best mention i've found of something similar. It seems to be a problem on the win32 client, something that microsoft servers have a workaround for; but Samba doesn't. I wish the net rpc file close <fileid> command worked, I'll keep trying to find out why. I'm accepting LuckyLindy's answer, even if it didn't solve the problem, because it's the only useful procedure in this case.
This happens all the time on our systems, particularly when connecting to Samba from a Win98 machine. We follow these steps to solve it (which are probably similar to yours):
See which computer is using the file (i.e. lsof|grep -i <file_name>)
Try to open that file from the offending computer, or see if a process is hiding in task manager that we can close
If no luck, have the user exit any important network programs
Kill the user's Samba process from linux (i.e. kill -9 <pid>)
I wish there was a better way!
I am creating a new answer, since my first answer really just contained more questions, and really was not a whole lot of help.
After doing a bit of searching, I have not been able to find any current open bugs for the latest version of Samba, please check out the Samba Bug Report website, and create a new bug. This is the simplest way to get someone to suggest ideas as to how to possibly fix it, and have developers look at the issue. LuckyLindy left a comment in my previous answer saying that this is the way it has been for 5 years now, well the project is Open Source the best way to fix something that is wrong by reporting it, and or providing patches.
I have also found one mailing list entry: Samba Open files, they suggest adding posix locking=no to the configuration file, as long as you don't also have the files handed out over NFS not locking the file should be okay, that is if the file is being held is locked.
If you wanted too, you could write a program that uses ptrace and attaches to the program, and it goes through and unlocks and closes all the files. However, be aware that this might possibly leave Samba in an unknown state, which can be more dangerous.
The work around that I have already mentioned is to periodically restart samba as a work around. I know it is not a solution but it might work temporarily.
This is probably answered here: How to close a file descriptor from another process in unix systems
At a guess, 'net rpc file close' probably doesn't work because the interprocess communication telling Samba to close the file winds up not being looked at until the file you want to close is done being read.
If there isn't an explicit option in samba, that would be impossible to externally close an open file descriptor with standard unix interfaces.
Generally speaking, you can't meddle with a process file descriptors from the outside. Yet as root you can of course do that as you seen in that phrack article from 1997: http://www.phrack.org/issues.html?issue=51&id=5#article - I wouldn't recommend doing that on a production system though...
The better question in this case would be why? Why do you want to close a file early? What purpose does it ultimately have to close the file? What are you attempting to accomplish?
Samba provides commands for viewing open files and closing them.
To list all open files:
net rpc file -U ADadmin%password
Replace ADadmin and password with the credentials of a Windows AD domain admin. This gives you a file id, username of who's got it open, lock status, and the filename. You'll frequently want to filter the results by piping them through grep.
Once you've found a file you want to close, copy its file id number and use this command:
net rpc file close fileid -U ADadmin%password
I needed to accomplish something like this, so that I could easily unmount devices I happened to be sharing. I wrote this quick bash script:
#!/bin/bash
PIDS_TO_CLOSE=$(smbstatus -L | tail -n-3 | grep "$1" | cut -d' ' -f1 - | sort -u | sed '/^$/$
for PID in $PIDS_TO_CLOSE; do
kill $PID
done
It takes a single argument, the paths to close:
smbclose /media/drive
Any path that matches that argument (by grep) is closed, so you should be pretty specific with it. (Only files open through samba are affected.) Obviously, you need root to close files opened by other users, but it works fine for files you have open. Note that as with any other force closing of a file, data corruption can occur. As long as the files are inactive, it should be fine though.
It's pretty ugly, but for my use-case (closing whole mount points) it works well enough.