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• Snapshotting single disk of running Hyper-V VM

  - by modelnine

  I'm currently somewhat at a loss of how to create a snapshot of a single virtual hard-disk of a running Hyper-V VM. Generally, creating a differential disk while a server is shut down is no problem (i.e., call the new-vhd cmdlet and pass a ParentPath, then update the VHD-binding of the respective VM-device), but while the host is running, all I can find is checkpointing the VM as a whole (which creates snapshots of all attached disks), and leaves the VM-state in a form which isn't easily processable by external tools (i.e., it requires reading additional meta-data from the VM). Generally, what'd I'd like to happen for a single-disk snapshot (in my understanding) is: Pause the VM Rename current disk to some other name which specifies it as a base-snapshot Create a new VHD which has the renamed VHD as parent path and is marked as "current" Swap the VHD for the VM for the snapshotted hard-disk to the newly created differential VHD Resume the VM Is there any means to do this programatically? Update: I've seen that this is actually possible with SCSI-disks, i.e. pause the VM, remove the SCSI disk, make the snapshot, reattach the SCSI disk at the same position, resume the VM. And, the VM resumes properly. But: is something similar also possible with G1 machines for the boot disk which is always IDE?

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• PackageForTheWeb "should not be executed directly"

  - by Sergei Ousynin

  When trying to install package (specifically, chipset drivers for Nexcom PEAK-series computer, but I guess it doesn't really matters) I get "PackageForTheWeb Error" saing "This program is used internally by PackageFromTheWeb. It should not be executed directly." I get this error on both Windows 2000 (where it should be installed) and Windows 7. The original driver CD was lost long time ago, so the package was downloaded from the Nexcom website, found no info about installer prerequisites there. What should I install (or anything else) to install this package? UPD: I found a solution - unpacked the package and executed setup.exe that was inside. But I'm pretty sure it's not an action supposed by vendor, so answers are still welcome.

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• scp using a password on the command line

  - by spierepf

  I am trying to write a script that will deploy a build created on my desktop machine (windows/cygwin) to a machine in my test environment (linux). I would like to use scp to copy the build to the target machine. The only account on the target machine is root, and I cannot create a special user for this task. The root user is unable to log in using an ssh key (I suspect that this is configured on the ssh server, but I do not know which configuration options control this). At any rate, I cannot change the configuration of the ssh server. My desktop machine uses Cygwin, and I have ssh installed. What I need is the command-line-fu that will allow me to put the password on the command line. I am aware of the dangers of having a plaintext password in a shell script, but that is not a concern here.

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• Kill program after it outputs a given line, from a shell script

  - by Paul

  Background: I am writing a test script for a piece of computational biology software. The software I am testing can take days or even weeks to run, so it has a recover functionality built in, in the case of system crashes or power failures. I am trying to figure out how to test the recovery system. Specifically, I can't figure out a way to "crash" the program in a controlled manner. I was thinking of somehow timing a SIGKILL instruction to run after some amount of time. This is probably not ideal, as the test case isn't guaranteed to run the same speed every time (it runs in a shared environment), so comparing the logs to desired output would be difficult. This software DOES print a line for each section of analysis it completes. Question: I was wondering if there was a good/elegant way (in a shell script) to capture output from a program and then kill the program when a given line/# of lines is output by the program?

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• Audio Line-In on Ubuntu/Linux Mint

  - by hahuang65

  I'm currently on Windows, and want to switch to Linux, but some hardware issues are preventing me. Mainly, I have a sound card that supports Line-In. On Windows, anything I plug into the line-in gets outputted to the speakers. However, when I installed Linux, because there is not a control application that comes with the driver, I have no idea how to set this up. I tried going to the sound settings and it doesn't seem to be there. I also want to configure it for 2.1 sound, and do not know how to do that... Anyone here done it before? Thanks in advance for the help!

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• SSO to multiple websites from Sharepoint website

  - by Aico

  We have an intranet based on Sharepoint 2010. In this intranet we have several links to other webservers within the same Active Directory, for example a link to our Outlook Web Access site on our Exchange 2010 environment. We have three different setups which visit this Sharepoint environment and the other webservers: Windows 7 clients that are a member of the Active Directory Home pc's that connect through a SSL VPN appliance Standalone thin clients (Windows 7 embedded) within the corporate network The goal is to let people only sign in once. In the first group this isn't a problem because the AD Integrated Authentication works fine and the Windows logon is passed on to Sharepoint and the other webservers. The second group is also working fine because of the LDAP integration that the SSL VPN appliance uses. The third group is however experiencing issues. They need to enter their credentials everytime they click a link to another webserver. They first need to enter credentials for accessing the Sharepoint environment. When clicking the link for their webmail they have to re-enter their credentials, and so on. Can someone tell me what the best solution would be to also get SSO working fine for the third group? Some extra information: We also have a Forefront TMG server in our environment. I read somewhere that Forefront might be part of a solution for this problem, but not sure how. Maybe someone here can help me? Look forward to some help. Best regards, Aico

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• Resetting Update Manager

  - by Emre

  How can I fix Update Manager in 12.04, which hangs when I try to install any update, while sudo apt-get upgrade works fine? I suspect it has something to do with my python installation. This is the error message: Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/defer/__init__.py", line 475, in _inline_callbacks result = gen.send(result) File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1622, in _run_transaction_helper daemon = get_aptdaemon(self.bus) File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1696, in get_aptdaemon False), File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 241, in get_object follow_name_owner_changes=follow_name_owner_changes) File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 248, in __init__ self._named_service = conn.activate_name_owner(bus_name) File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 180, in activate_name_owner self.start_service_by_name(bus_name) File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 278, in start_service_by_name 'su', (bus_name, flags))) File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking message, timeout) dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1 Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/defer/__init__.py", line 475, in _inline_callbacks result = gen.send(result) File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1622, in _run_transaction_helper daemon = get_aptdaemon(self.bus) File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 1696, in get_aptdaemon False), File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 241, in get_object follow_name_owner_changes=follow_name_owner_changes) File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 248, in __init__ self._named_service = conn.activate_name_owner(bus_name) File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 180, in activate_name_owner self.start_service_by_name(bus_name) File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 278, in start_service_by_name 'su', (bus_name, flags))) File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking message, timeout) dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1 dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1 Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/defer/__init__.py", line 473, in _inline_callbacks result = gen.throw(result.type, result.value, result.traceback) File "/usr/lib/python2.7/dist-packages/UpdateManager/backend/InstallBackendAptdaemon.py", line 52, in commit downgrade, defer=True) dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Launch helper exited with unknown return code 1

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• Any software transforming broken lines into curves?

  - by brilliant

  Hello, do you know of any software that would help me transform a broken line into a curved line? For example, I have an octagon or a heptagon and I want it to be transformed into something resembling a circle. if you know such software, please, let me know. Thank You! Update A: Here is an image from the tutorial given to me by Jamie Keeling (right now it's the first answer below). At least the picture there represents what I want. In that tutorial this process is called "flattening paths". I will try to put that image right here, but if it doesn't get displayed, you can find it here: http://msdn.microsoft.com/en-us/library/ms536364%28v=VS.85%29.aspx The red line in the picture is what I would want to submit, and the blue line is what I would want to get in the end:

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• edit commandline with $EDITOR in tcsh

  - by Nathan Fellman

  Today's Daily Vim says this: Assuming you're using the bash shell, the following can be helpful when composing long command lines. Start typing on the command line and then type Ctrl-x Ctrl-e, it should drop you into your system's default editor (hopefully Vim) and allow you to edit the command line from there. Once finished, save the command line, and bash will run the command. Is there any way to do this in tcsh?

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• What are good CLI tools for JSON?

  - by jasonmp85

  General Problem Though I may be diagnosing the root cause of an event, determining how many users it affected, or distilling timing logs in order to assess the performance and throughput impact of a recent code change, my tools stay the same: grep, awk, sed, tr, uniq, sort, zcat, tail, head, join, and split. To glue them all together, Unix gives us pipes, and for fancier filtering we have xargs. If these fail me, there's always perl -e. These tools are perfect for processing CSV files, tab-delimited files, log files with a predictable line format, or files with comma-separated key-value pairs. In other words, files where each line has next to no context. XML Analogues I recently needed to trawl through Gigabytes of XML to build a histogram of usage by user. This was easy enough with the tools I had, but for more complicated queries the normal approaches break down. Say I have files with items like this: <foo user="me"> <baz key="zoidberg" value="squid" /> <baz key="leela" value="cyclops" /> <baz key="fry" value="rube" /> </foo> And let's say I want to produce a mapping from user to average number of <baz>s per <foo>. Processing line-by-line is no longer an option: I need to know which user's <foo> I'm currently inspecting so I know whose average to update. Any sort of Unix one liner that accomplishes this task is likely to be inscrutable. Fortunately in XML-land, we have wonderful technologies like XPath, XQuery, and XSLT to help us. Previously, I had gotten accustomed to using the wonderful XML::XPath Perl module to accomplish queries like the one above, but after finding a TextMate Plugin that could run an XPath expression against my current window, I stopped writing one-off Perl scripts to query XML. And I just found out about XMLStarlet which is installing as I type this and which I look forward to using in the future. JSON Solutions? So this leads me to my question: are there any tools like this for JSON? It's only a matter of time before some investigation task requires me to do similar queries on JSON files, and without tools like XPath and XSLT, such a task will be a lot harder. If I had a bunch of JSON that looked like this: { "firstName": "Bender", "lastName": "Robot", "age": 200, "address": { "streetAddress": "123", "city": "New York", "state": "NY", "postalCode": "1729" }, "phoneNumber": [ { "type": "home", "number": "666 555-1234" }, { "type": "fax", "number": "666 555-4567" } ] } And wanted to find the average number of phone numbers each person had, I could do something like this with XPath: fn:avg(/fn:count(phoneNumber)) Questions Are there any command-line tools that can "query" JSON files in this way? If you have to process a bunch of JSON files on a Unix command line, what tools do you use? Heck, is there even work being done to make a query language like this for JSON? If you do use tools like this in your day-to-day work, what do you like/dislike about them? Are there any gotchas? I'm noticing more and more data serialization is being done using JSON, so processing tools like this will be crucial when analyzing large data dumps in the future. Language libraries for JSON are very strong and it's easy enough to write scripts to do this sort of processing, but to really let people play around with the data shell tools are needed. Related Questions Grep and Sed Equivalent for XML Command Line Processing Is there a query language for JSON? JSONPath or other XPath like utility for JSON/Javascript; or Jquery JSON

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• WPF TreeView PreviewMouseDown on TreeViewItem

  - by imekon

  If I handle the PreviewMouseDown event on TreeViewItem, I get events for everything I click on that TreeViewItem include the little +/- box to the left (Windows XP). How can I distinguish that? I tried the following: // We've had a single click on a tree view item // Unfortunately this is the WHOLE tree item, including the +/- // symbol to the left. The tree doesn't do a selection, so we // have to filter this out... MouseDevice device = e.Device as MouseDevice; // This is bad. The whole point of WPF is for the code // not to know what the UI has - yet here we are testing for // it as a workaround. Sigh... // This is broken - if you click on the +/- on a item, it shouldn't // go on to be processed by OnTreeSingleClick... ho hum! if (device.DirectlyOver.GetType() != typeof(Path)) { OnTreeSingleClick(sender); } What I'm after is just single click on the tree view item excluding the extra bits it seems to include.

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• Need to convert dgn to pdf

  - by magh

  Need to convert MicroStation(dgn) files to pdf file using command line execution Thanks in Advance

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• How can I embed a CR+LF in a command issued at the Windows command prompt?

  - by Rob Sobers

  How can I embed a CR + LF in a command I'm using at the Windows command prompt without actually issuing the command? Example: C:\Windows\system32>myprog -u user -p pass -text "Sincerely,\nRob" Is it up to myprog to do handle the line break? I figured there must be some way to represent a line break that the Windows command line would recognize.

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• how to debug VC++ program, input file not open while debuging

  - by zeedotcom

  i am using Visual studio 8. i pass command line argument to my program when i execute the program using exe file it works fine but when i use to debugg. it is unable to open the input file which i have given it in the form of command line argument. although i have given the command line argument in the Project-properties-debug-command line arguments.... e.g "program.exe" input_file output_file input file contains data which i have to use in the calculation if i am unable to debug it. how can i remove the errors in my program reply me thanks

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• Sending and treating text by get method

  - by ilnur777

  Guys, could you help me with treating text sent with GET method. How to detect and treat line foldings in text? The text is sent from textarea through AJAX using GET method. How to detect line foldings in text when it is sent in GET method? And I want to replace all line foldings with special character for example like "|" before sending to PHP script. How to do it?

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• How to save memory when reading a file in Php ?

  - by coolboycsaba

  I have a 200kb file, what I use in multiple pages, but on each page I need only 1-2 lines of that file so how I can read only these lines what I need if I know the line number? For example if I need only the 10th line, I don`t want to load in memory all the lines, just the 10th line. Sorry for my bad english!

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• How can I extract a range of lines from a text file on unix?

  - by Adam J. Forster

  I have a ~23000 line sql dump containing several databases worth of data. I need to extract a certain section of this file (i.e. the data for a single database) and place it in a new file. I know both the start and end line numbers of the data that I want. Does anyone know a unix command (or series of commands) to extract all lines from a file between say line 16224 and 16482 and then redirect them into a new file?

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• RoboCopy Log File Analysis

  - by BobJim

  Is it possible to analyse the log text file outputted from RoboCopy and extract the lines which are defined as "New Dir" and "Extra Dir"? I would like the line from the log contain all the details returned regarding this "New Dir" or "Extra Dir" The reason for completing this task is to understand how two folder structures have change over time. One version has been kept internally at the parent company, the second has been used by a consultancy. For your information I am using Windows 7.

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• there's no sudo command in cygwin

  - by Jason Sundram

  Because there's no sudo command in Cygwin, scripts that I want to run fail with ./install.sh: line N: sudo: command not found What's the standard way for getting around this? Editing the scripts to remove sudo? Getting some sudo-like tool for windows?

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• Insert a newline in a perl -e statement?

  - by lydonchandra

  If I do this in bash perl -e '$x; $y' How can I insert a newline between the character ; and $y? I don't want to re-type the whole line, I just want to move my cursor to the position and then insert a newline. Is this possible? Many thanks.

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• How to run a command as admin in MSDos?

  - by tech

  I want to run a dos command in dos prompt, but this dos command is only executed using admin right. So, I can right click the command prompt to run as administrator, but I wanna to run one line of dos command using the admin right, can I run dos command in dos prompt like sudo in DOS cmd? thz u.

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• Autologin on Ubuntu Server

  - by hekevintran

  I have a machine running Ubuntu Server. It has only a command-line interface. How can I make the system login with a specific user automatically (I don't want to type the username/password). I know that this is insecure and I don't care.

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• "SSH server" in Windows?

  - by Benjamin Oakes

  I have some command-line commands to execute on a Windows machine. The programs I need to run are only available on Windows. Is there a way to easily to do something like I would do with SSH? Example of what I mean: ssh [email protected] "remote command to execute" ...or do I have to Remote Desktop just to do this? (I'd like to run the commands programmatically from another computer rather than running them by hand.)

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• List full timestamps of files in a tarball

  - by Mechanical snail

  I have a large tar archive and want to see the exact (nanosecond) timestamps that are stored for each file in the archive. In case it's relevant, the tarball is in POSIX-2001 format (tar --format=posix). tar --list --verbose displays the timestamps rounded off to the minute. For comparison, ls --full-time does what I want, but I'd rather not have to extract everything first because it's huge. For my purposes, command-line and GUI tools are both fine.

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• What's wrong with this bash prompt?

  - by takeshin

  I use the following entry in ~/.bashrc file to colorize the prompt and display current branch of git repository: PS1='\[\e[1;32m\]\[\u@\h\]\[\e[m\] \[\w\]\[\e[1;1m\]\[$(__git_ps1 " (%s)")\] \[\e[1;1m\]\[$\] \[\e[m\]' This works almost fine, except when I use bash history (up arrow key few times), the command line becomes 'outdented' (just the first characters of the prompt remains untouched), and the visible is: usemmand when my username is user and the command is command.

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