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  • How to make Ubuntu useradd behave like Centos useradd?

    - by Buttle Butkus
    I don't remember modifying CentOS useradd to get this behavior. useradd in CentOS creates the user's home directory with all the normal files (like .bashrc). I modified /etc/default/useradd to make it looks like CentOS (just required some uncommenting) except for Ubuntu having SHELL=/bin/sh instead of SHELL=/bin/bash How do I make useradd act like it does in CentOS? Is there some existing option to change? Or should I just add an alias to /etc/bash.bashrc? The difference: On Ubuntu, useradd is not creating the home directory. as root: $ useradd test $ cd ~test -su: cd: /home/test: No such file or directory

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  • Can FileOutputStream() take a relative path as an argument

    - by Ankur
    I am creating a FileOutputStream object. It takes a file or String as an argument in its constructor. My question is, can I give it a relative URL as an argument for the location of a file, it doesn't seem to work, but I am trying to work out if this is possible at all (if not I will stop trying). If it is not possible, how can I (from a servlet) get the absolute path (on the filesystem, not the logical URL) to the current location in such a way that I can pass that to the constructor. Part of my problem is that my dev box is Windows but I will publish this to a Unix box, so the paths cannot be the same i.e. on Windows C:/.... and on unix /usr/...

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  • A button to set all processes to on-hold for Linux?

    - by fuenfundachtzig
    When Linux starts swapping you're basically doomed. Very soon the system won't react to any input any more, but happily swap on until the end of days... Can you think of a command that holds all processes whatsoever, thus (and while) allowing you to open a clean shell where you can examine the source of the problem and kill the process which ate up all the memory? (I guess this won't be easy, because as the memory is probably completely filled up you'd need to swap out some more memory to gather space for opening a shell, on the other hand all other swapping processes must be stopped.) If you tied such a command to a hot key then maybe you can use this as an emergency button saving you a lot a time. Any ideas if this is possible at all? Has somebody tried something like this before? If one could realize this it would be a cool feature :)

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  • Alternative terminal emulators for OS X

    - by Joseph Silvashy
    This might sound ridiculous, but my eyes are tired of looking at the crappy font rendering in OS X's Terminal.app, is there anything you guys recommend? I know it's like one of those things that you can easily say, "It's shell! what more can you ask for!" but really, all these great methods for rendering fonts and anti-aliasing, and we developers haven't even integrated that into our most trusty tool... at least that I know of. Anyhow, let's discus shell alternatives, thoughts?

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  • In what language was MSDOS originally written?

    - by nebukadnezzar
    In what language was MSDOS originally written in? The Wikipedia Article implies either C, QBasic or Pascal, but: C was invented to write UNIX, so I don't believe it was used to write MSDOS Pascal seems popular to teach programming, but not really popular to write Operating systems in QBasic didn't seem to be very popular for Operating Systems at the time MSDOS was developed (or was *BASIC ever very popular to write Operating Systems in it?) Except these three languages there is also Assembly, but I assume that Microsoft already switched from Assembly to a "higher" level language? Since C was originally invented for UNIX, I still wouldn't think Microsoft is using C... although the Microsoft API is written in C (I find this kind-of oxymoronic, actually). Can anyone enlighten me on this topic?

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  • Get error (Repair Filesystem) 1 # when I install 4 new Hard drives in RedHat Linux 5 on a Dell PowerEdge 2900

    - by Alos Diallo
    Hi I am using a Dell PowerEdge 2900 running RedHat 5. I had 4 drives in the system using a Raid 5, I purchased and installed 4 more drives keeping the configuration the same. Set up the Vertual disks in PERC 6/i. When I exit out and reboot the system I get the following: fsck.ext3: No such file or dirrectory while trying open /dev/ddb1 [FAILED] ***An error occurred during the file system check. ***Dropping you to a shell; the system will reboot ***when you leave the shell. Then am prompted for the root pw. I enter it and am then prompted with: (Repair filesystem) 1# if I type fdisk -l I get some info on the disk along with: Disk /dev/sdb doesn't contain a valid partition table I am then prompted for (Repair filesystem) 2# If I reboot I am taken to the same screen again. The system was working before this happened. Does anyone know why this is happening and or what I can do to fix it? Thanks

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  • SSH: one user logs in, other don't

    - by Co Lega
    Some users can ssh correctly, others don't. I have an admin user, which is in wheel. I used vsftpd for allowing FTP. I created a nologin user for FTP. Call this user "ftpuser". Now I want to allow sftp. It allows me to connect using admin user. I remove the nologin, by giving the user a shell via usermod -s /bin/bash ftpuser. It still doesn't allow me to connect from the ftpuser via sftp. The content of /home/ftpuser/.ssh is just the known_hosts file which contains "localhost" entry only. User permissions are (in theory) ok: ls -la /home working (admin) : drwx------ 18 admin admin 4096 Feb 6 15:33 admin non-working(ftpuser): drwx------ 3 ftpuser ftp 4096 Mar 26 15:25 ftpuser I haven't configured anything special on openssh. Does the ftpuser need anything extra than shell to enter via ssh?

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  • Custom command in right-click menu not working

    - by Luke
    I have added, via the registry, a right click menu option for all filetypes which is supposed to get the MD5 checksum for a file. HKEY_CLASSES_ROOT*\shell\Checksum - Default: Get Checksum and HKEY_CLASSES_ROOT*\shell\Checksum\command - Default: checksum.cmd "%1" checksum.cmd simply clears the screen, calls fciv.exe using %1 and then pauses. Unfortunately, whilst the option "Get Checksum" appears correctly in the right click menu, it doesn't perform the right action when clicked. When I click it an "Open With" dialog opens, which is of course not what I want. Both checksum.cmd and fciv.exe are in the PATH. checksum.cmd: @echo off cls fciv.exe %1 pause Anybody know what's going on?

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  • Ubuntu: One or more of the mounts listed in fstab cannot ye be mounted

    - by Phuong Nguyen
    I was enjoying a Movie when my Ubuntu suddenly hung. At the next reboot, here is the message: One or more of the mounts listed in /etc/fstab cannot yet be mounted: /home: waiting for /dev/disk/by-uuid/.... Press ESC to enter a recovery shell. Problems: When I enter recovery shell, I don't know that to do. If I press Ctrl+D, then the message above will reappear. What should I do? I checked with Ubuntu Live CD and my partition looks OK.

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  • How can I determine what is causing SQL Server 2008 Express to hang Windows 7?

    - by thelaughingdm
    I have SQL Server Express 2008 installed on a Windows 7 (32-bit) developer workstation. Whenever I run an application that accesses SQL Server the Windows 7 shell hangs when the application closes. Applications like Windows Explorer and Task Manager become completely unresponsive. The task bar will not allow any interaction. The only way to recover the system is to power cycle. Two of the applications in use when this happens are NUnit and SQL Server Management Studio. NUnit always runs the unit tests that interact with the database fine. SQL Server Management Studio will sometimes cause the problem while trying to explore the database. The Windows event log does not show any events that are obviously connected to the problem. I have reverted and reinstalled SQL Server Express 2008 several times. What can be done to identify what is causing SQL Server Express 2008 to hang the Windows 7 shell?

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  • Selecting keys based on metadata, possible with Amazon S3?

    - by nbv4
    I'm sending files to my S3 bucket that are basically gzipped database dumps. They keys are a human readable date ("2010-05-04.dump"), and along with that, I'm setting a metadata field to the UNIX time of the dump. I want to write a script that retrieve the latest dump from the bucket. That is to say I want the the key with the largest unix time metadata value. Is this possible with Amazon S3, or is this not how S3 is meant to work? I'm using both the command line tool aws, and the python library boto

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  • pinvoke to clutter function

    - by trampster
    I'm trying to pinvoke to a clutter function. The function is defined in the docs as ClutterActor * clutter_texture_new_from_actor (ClutterActor *actor); The code I have is as follows: [DllImport ("libclutter-glx-1.0.so.0")] private static extern IntPtr clutter_texture_new_from_file (string filename, IntPtr errorData); And I call it like this: IntPtr texture = clutter_texture_new_from_file("myImage.jpeg",IntPtr.Zero); however when called like this in monodevelop on ubuntu I get the following error. Unix Transport Error Eventally I would like to get the error reporting working so I can get the gerror result however firstly I need to get past the Unix Transport Error.

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  • Count of memory copies in *nix systems between packet at NIC and user application?

    - by Michael_73
    Hi there, This is just a general question relating to some high-performance computing I've been wondering about. A certain low-latency messaging vendor speaks in its supporting documentation about using raw sockets to transfer the data directly from the network device to the user application and in so doing it speaks about reducing the messaging latency even further than it does anyway (in other admittedly carefully thought-out design decisions). My question is therefore to those that grok the networking stacks on Unix or Unix-like systems. How much difference are they likely to be able to realise using this method? Feel free to answer in terms of memory copies, numbers of whales rescued or areas the size of Wales ;) Their messaging is UDP-based, as I understand it, so there's no problem with establishing TCP connections etc. Any other points of interest on this topic would be gratefully thought about! Best wishes, Mike

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  • How to cd into smb://[email protected] from terminal?

    - by John
    I am using ubuntu and gnome on my computer. When I open up File Browser, on the left hand rail, I see conveniently a folder called "Work Server". When I mouse over it, the following caption appears "smb://[email protected]". If I click on that folder, then I can see the contents of that folder. Everything is great. So now when I open up a terminal/shell, I type in cd smb://[email protected] I get an error saying the directory doesn't exist. How do I enter this directory via shell/terminal?

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  • NGINX/PHP downloading instead of executing

    - by Travis D
    I have an NGINX server with fastcgi/PHP running on it. I need to add userdirs to it, but I can't get PHP to execute the files - it just asks me if I want to download it. It does work without the userdir (eg: it works on physibots.info/hugs.php, but not physibots.info/~kisses/hugs.php) Any help is greatly appreciated. Config: server { listen 80; server_name physibots.info; access_log /home/virtual/physibots.info/logs/access.log; root /home/virtual/physibots.info/public_html; location ~ ^/~(.+?)(/.*)?\.php$ { fastcgi_param SCRIPT_FILENAME /home/$1/public_html$fastcgi_script_name; fastcgi_pass unix:/tmp/php.socket; } location ~ ^/~(.+?)(/.*)?$ { alias /home/$1/public_html$2; autoindex on; } location ~ \.php$ { try_files $uri /error.html/$uri?null; fastcgi_pass unix:/tmp/php.socket; } }

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  • rename multiple files with unique name

    - by psaima
    I have a tab-delimited list of hundreds of names in the following format old_name new_name apple orange yellow blue All of my files have unique names and end with *.txt extension and these are in the same directory. I want to write a script that will rename the files by reading my list. So apple.txt should be renamed as orange.txt. I have searched around but I couldn't find a quick way to do this.I can change one file at a time with 'rename' or using perl "perl -p -i -e ’s///g’ *.txt", and few files with sed, but I don't know how I can use my list as input and write a shell script to make the changes for all files in a directory. I don't want to write hundreds of rename command for all files in a shell script. Any suggestions will be most welcome!

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  • Need a script/batch/program that runs a command that won't be killed when the parent is killed

    - by billc.cn
    The scenario I use Zabbix to monitor my servers and recently I wanted to add some more metrics for the Windows ones. For security reasons, I used Zabbix's User Parameter feature, but it limits the execution of external commands to about 3 seconds. After that, the command is forcibly killed. I want to run some long run commands, so I used the trick from Zabbix's forum: run the command in the background, write the results to a file and use Zabbix to collect them. This is rather easy under *nix thanks to the "&" operator, but there is no such support in Windows' shell. To make things worse, when Zabbix kills forcibly kill the cmd.exe it used to evaluate the commands, all child processes die including the unfinished background tasks. Thus I need something that can sever all the ties with its children so they won't be affected in the cascading kill. What I've tried start and start /B - They do nothing as the child always die with the parent WScript.Shell.Run as in invis.vbs from StackOverflow - Sometimes work. If the wscript process is forcibly killed as opposed to quitting on its own, the children will die as well. hstart - similar results to invis.vbs At command - This requires you to set an absolution time for the task to run as opposed to an offset, so the code would be quite messy due to the limited shell scripting capability of Windows. (Edit) PsExec.exe from the SysInternals suite - It uses a service to launch the command, so it is not affected by the kill; however, it prints some banner and log info to StdErr and there's no switch to disable this. When I use 2>NUL to redirect them, Zabbix reports an error. After trying the above in different combinations, I noticed if I call hstart from invis.vbs, the command started by the former will be left alone as a parent-less process when invis.vbs is killed. However, since I need to redirect the output, the command I want to run is always in the form of cmd.exe /c ""command" "args"" >log. The vbs also removes all the quotes, so I have to encode the command with self-defined escape sequences. The end result involves about five levels of escaping/quoting, which is almost impossible to maintain. Anyone know any better solutions? Some requirements Any bat/vbs/js/Win32 binary is acceptable Better not require multiple levels of escaping No .Net (including PowerShell) because it is not installed

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  • Command line tool (PDF Workflow) in OSX that detects if key is down

    - by kroko
    Hello! I'm writing a OSX PDF Workflow in ObjC and C. A single executable ("UNIX Tool" as named in the Apple reference), that reads in the spooled PDF file, does some parsing. I'd like to give more functionality by enabling a key-down event handling, meaning - when user opens print dialog in an application - and chooses to left-mouse-click on the custom made pdf workflow to run it - depending on if a keyboard key is down (i.e. option key, but "any key down" would be enough for me) when running that workflow - a decision is made in the code. I have read NSEvent and Carbon Event Manager reference and it seems that in this case (a plain unix executable + not run as root) it's not possible. Or is it? Many thanks in advance, Kroko

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  • Convert Date Format

    - by Pankaj Khurana
    Hi, I have a moodle installation in which there is a column in mdl_user table called firstaccess whose type is bigint(10) and contains date in following format 1266839570. I am writing a query for accessing users according to date filters. For e.g. i want to check which users firstaccess is greater than '2010-04-12'. How can i convert the date? These two date formats are different. I think firstaccess is unix timestamp. Should i change the '2010-04-12' into unix timestamp or there is a way to convert firstaccess i.e 1266839570 to yyyy-mm-dd format. Please help me on this. Thanks

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  • Top causes of slow ssh logins

    - by Peter Lyons
    I'd love for one of you smart and helpful folks to post a list of common causes of delays during an ssh login. Specifically, there are 2 spots where I see a range from instantaneous to multi-second delays. Between issuing the ssh command and getting a login prompt and between entering the passphrase and having the shell load Now, specifically I'm looking at ssh details only here. Obviously network latency, speed of the hardware and OSes involved, complex login scripts, etc can cause delays. For context I ssh to a vast multitude of linux distributions and some Solaris hosts using mostly Ubuntu, CentOS, and MacOS X as my client systems. Almost all of the time, the ssh server configuration is unchanged from the OS's default settings. What ssh server configurations should I be interested in? Are there OS/kernel parameters that can be tuned? Login shell tricks? Etc?

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  • how can i disable safe mode for php on web server?

    - by user1767434
    I am using wkhtmltopdf for making a pdf of a page. My code executes the shell to run a command using this wkhtmltopdf library. Everything works fine in my wamp server but when the code runs on my web-server it does not work and gives the following error: Warning: shell_exec() has been disabled for security reasons in /home/pssptech/public_html/.../cert.php on line 272 I think that the php is running on safe mode on the server that's why the shell execution is disabled. But the main problem is I am unable to find the php.ini file on my remote web-server. Can you tell me where can I find the config file so that I can disable the safe mode? Thanks in advance.

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  • Optimal way to store and pass a date to Javascript

    - by user1493115
    I need to store a date-time value in MySQL and subsequently display it on a webpage. Due to its flexibility I usually chose to store a Unix timestamp in the database and convert it with PHP's date() to the desired format. This time however I would like to use MySQL's datetime field (mostly due to 2038) and apply the browser's timezone (hence I cannot simply format it on the server and pass the string to the client). I thought of storing the date as UTC datetime in the database and send it as well-defined format to the client, where it will be further processed. Here I would like to avoid a Unix timestamp but everything else might add additional overhead in processing. Is there any best practice as far as date processing is concerned in a MySQL, PHP, JQuery environment? Thanks.

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  • Use test to check for condition with find and execdir option

    - by slosd
    I think I can keep my question short. Why does the following command produce no output? find /usr/share/themes -mindepth 1 -maxdepth 1 -type d -execdir test -d {}/gnome-shell \; I expected it to print all folders in /usr/share/themes that contain a folder gnome-shell. Several websites suggest that this usage of test as a command in exec/execdir is possible. From man find: -exec command ; Execute command; true if 0 status is returned. [...]

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