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  • recursively delete empty directories in windows

    - by mohlsen
    I have a directory on my Windows 7 machine that has hundreds if not thousands of sub-directories. Some of them have files, some do not. I want to delete all the empty directories. Looking at the del and rmdir DOS command, it does not look like you can recursively do this without deleting all the files. Is there a way to do this from the command line? Or is there a tool that would do it for me?

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  • Variable popen calls in C

    - by Bushman
    I'm trying to execute MS-DOS DEL commands inside a Win32 C program, and I already know that system and popen can be used for this. However, the problem is that both require string literals (type const char) for the commands, and I need something like the DOS equivalent of dir ~ | grep -P '/\d{7,8}\.exe$/' | rm, which obviously can't use string literals. Is there some other subprocess function in C that allows for char arrays as arguments for process names?

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  • How can I add usbip modules on Redhat 6 kernel?

    - by Gk.
    I have RHEL 6 with # uname -r 2.6.32-131.0.15.el6.x86_64 I'm trying to build usbip modules on staging driver. Everything is OK. I have all needed *.ko files. But I cannot add those modules on running kernel. # pwd /lib/modules/2.6.32-131.0.15.el6.x86_64 # ls | grep ko usbip_common_mod.ko usbip.ko vhci-hcd.ko # modprobe usbip FATAL: Error inserting usbip (/lib/modules/2.6.32-131.0.15.el6.x86_64/usbip.ko): Required key not available # insmod usbip.ko insmod: error inserting 'usbip.ko': -1 Required key not available How can I add it? Do I need to rebuild whole kernel? TIA, giobuon

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  • Vi on Linux: show ^M line endings for DOS-format files

    - by sss
    On Solaris, if you open a file in vi that has Windows line endings, this shows up as ^M at the end of every line. On Linux, vi is cleverer and understands the Windows file format, and does not display ^M. Is there a setting to make Linux vi behave the same as Solaris in this respect? A common problem for us is copying a shell script off a (Windows) dev box and forgetting to dos2unix it, and then being confused when it doesn't work properly. On Solaris the problem is obvious as soon as you vi the file, but not on Linux. Thanks.

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  • Dos/ Flood Lag even though Port not Saturated

    - by Asad Moeen
    My GameServers had been under some UDP Floods due to which they generated outputs to the attacker which gave the GameServers some huge lags. Thanks to friends at ServerFault that upon different kind of testing, I was able to successfully block the attack. My question is actually something else but it is important to know how the GameServers reacted to the attack and if the machine kept stable or not: 300kb/s Input would cause GameServer to generate 2mb/s Output. So as the Input Rate kept increasing, output rate would reach so high that it would no longer be possible for the GameServer to control it and hence it would give a huge Lag until the attack is stopped. Usually the game server starts to lag when it sends out something greater than 5mb/s and under that is controllable. Theoretically, I was able to receive a 60mb/s output from my GameServer on inputting 10mb/s. Its just the way the GameServer works if not protected. Now on some of my machines, only the GameServer under attack lagged and although the server was generating 60mb/s output, rest of the gameservers on other ports would run fine without lags on the same machine. But there was another machine which also runs on a 100 MBPS Network port, even 1 mbps input ( and ZERO output because attack is blocked ) even on an unused port would give a constant yellow line ( on the Lag-o-Meter ) to all the clients on all GameServers indicating lag because that line is actually blue under normal conditions. It would remain the same even on 50mbps or 900mbps input. I tried contacting the host about it because I believe its the way their Network is bridged, but they can't help me about it. Anyone else knowing about such issues because if 900mbps input does not Saturate the port, how can 1mbps input lag the servers although port is not saturated and enough bandwidth is available?

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  • Copy images using a single dos command

    - by Haroon
    Hi guys, I'm wondering if it's possible to copy only images files from a directory. For example, if source directory has: a.jpg b.gif c.png d.txt I want to copy only image (using one command), to get this in the destination directory: a.jpg b.gif c.png

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  • NGINX load balancer DOS itself

    - by cjaredrun
    I have been running a load balancing machine for a number of months now which has had no problems in the past. I got woken up to some downtime and I am seeing this a lot in syslog: TCP: Possible SYN flooding on port 80. Sending cookies. At which point Nginx takes up 100% of the cpu and doesn't come back down to normal for several minutes. I have it running on Ubuntu currently but I also was able to replicate on Debian 6.

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  • DOS Batch file to find "new" files by date

    - by Todd McArthur
    My PC has entered an infinite BSOD loop - but I do have access to a safe-mode command prompt. I'm trying to get an idea of "what changed" that might have triggered this. e.g. I might have gotten a virus, or an app update went belly up. I'd like to thus see which files were created/modified in the last few days/week or at least the *.exe, *.dll, *.com, *.bat etc. I thought I was ok with my Batch-fu but I'm stumped on how to write a quick batch file/command that would list the files for me. REM This will find the files, but the results are all muddled REM all EXE files, reverse sort by date, recursively through sub-directories dir *.exe /O-D /S What I'd really like is to find all (executable filetypes) that were created/modified in the last 3-7 days. Can anyone point me in the right direction?

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  • after changing file from unix to dos it is having empty lines..how to handle this

    - by user2814717
    After converting file using **unix2dos** command it is having some empty lines. Please help me. How to handle this? I tried to delete empty lines as follow, but couldn't work. $ sed '/^$/d' /tmp/data.txt Hey following examples also didn't work. Pl help This is source data before using unix2dos. ID NAME DATE 1 BALA 09/23/2013 2 KRISHH 09/24/2013 3 billy 09/24/2013 After using unix2dos it is coming as ID NAME DATE 1 BALA 09/23/2013 2 KRISHH 09/24/2013 3 billy 09/24/2013 first and second record there is an empty line coming up..may be in bewteen data also Thanks

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  • Dos more RAM on Mac really improve performance?

    - by Moshe
    I'm coming from a PC, loaded with a Core 2 Quad CPU and 8GB of DDR2 RAM. I was running Premiere CS3. I'm new to Mac so I'm not sure if this will help performance: Will increasing my 21.5" Core 2 Duo iMac's memory from 4GB (DDR3) to 8GB improve performance of Premiere CS4 significantly? I am not impressed with Premiere as it is now. The iMac is the newest one as of this post.

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  • How to include duplicate values when setting environmental variable SET in dos

    - by Sachin
    I am trying to get the values from a file which has duplilcates also. But while setting the values in environmental variable SET, it is not considering the duplicate values. I am using below code: for /f "tokens=1,2 delims=@" %%a in (test.txt) do ( set size=............%%b call set %%size:~-12%%=%%a ) for /f %%a in ('set .') do >>outfile.txt echo %%a Format of test.txt: "C\ab"@12345678 "C\ab\we"@345678905 "C\ad\df"@345678905

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  • Remote desktop connection dos not respond anymore (no more task bar)

    - by Bronzato
    I have a remote desktop connection (from my home) to the company's server. On this I opened a Remote Desktop Connection Manager and inside this connect to a specific server. I was busy copying a file but this task never ends. So I kill the process and now I have a blue screen and no more taskbar. Very frustrating. When I try CTRL+ALT+END (=CTRL+ALT+DEL) this is executed on the main server and not the server which gives me the blue screen. I don't know if I'm clear. I know I should have keep Task Manager open and type Run... explorer.exe but I closed it. Any help is really appreciated!

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  • Looking for DOS/DDOS protection tools and strategies

    - by Alexandre Victoor
    I am working on a java application that exposes webservices for a flash client. Any idea on how to prevent DOS/DDOS attacks ? I cannot use mechanism unfriendly for the end user such as captcha. So far I have found mod_evasive, an apache module which looks quite promising... Any suggestions, best practices, tools I might use ? Thanks in advance

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  • SQLCMD Restore works in Management Studio but not from DOS prompt

    - by Gautam
    Any idea why my Restore command works fine when run in Management Studio 2008 but not when run from the dos prompt? Shown below is the error when running from the dos prompt. C:\>SQLCMD -s local\SQL2008 -d master -Q "RESTORE DATABASE [Sample.Db] FROM DISK = N'C:\Sample.Db.bak' WITH FILE = 1, MOVE N'Sample.Db' TO N'C:\Program Files\Microsoft SQL Server\MSSQL10.SQL2008\MSSQL\DATA\Sample.Db.mdf', MOVE N'Sample.Db_log' TO N'C:\Program Files\Microsoft SQL Server\MSSQL10.SQL2008\MSSQL\DATA\Sample.Db_log.ldf', NOUNLOAD, REPLACE, STATS = 10" Msg 3634, Level 16, State 1, Server GAUTAM, Line 1 The operating system returned the error '32(The process cannot access the file because it is being used by another process.)' while attempting 'RestoreContainer::ValidateTargetForCreation' on 'C:\Program Files\Microsoft SQL Server\MSSQL10.SQL2008\MSSQL\DATA\Sample.Db.mdf'. Msg 3156, Level 16, State 8, Server GAUTAM, Line 1 File 'Sample.Db' cannot be restored to 'C:\Program Files\Microsoft SQL Server\MSSQL10.SQL2008\MSSQL\DATA\Sample.Db.mdf'. Use WITH MOVE to identify a valid location for the file. Msg 3634, Level 16, State 1, Server GAUTAM, Line 1 The operating system returned the error '32(The process cannot access the file because it is being used by another process.)' while attempting 'RestoreContainer::ValidateTargetForCreation' on 'C:\Program Files\Microsoft SQL Server\MSSQL10.SQL2008\MSSQL\DATA\Sample.Db_log.ldf'. Msg 3156, Level 16, State 8, Server GAUTAM, Line 1 File 'Sample.Db_log' cannot be restored to 'C:\Program Files\Microsoft SQL Server\MSSQL10.SQL2008\MSSQL\DATA\Sample.Db_log.ldf'. Use WITH MOVE to identify a valid location for the file. Msg 3119, Level 16, State 1, Server GAUTAM, Line 1 Problems were identified while planning for the RESTORE statement. Previous messages provide details. Msg 3013, Level 16, State 1, Server GAUTAM, Line 1 RESTORE DATABASE is terminating abnormally. However if I execute this directly in Management Studio 2008, it works fine: RESTORE DATABASE [Sample.Db] FROM DISK = N'C:\Sample.Db.bak' WITH FILE = 1, MOVE N'Sample.Db' TO N'C:\Program Files\Microsoft SQL Server\MSSQL10.SQL2008\MSSQL\DATA\Sample.Db.mdf', MOVE N'Sample.Db_log' TO N'C:\Program Files\Microsoft SQL Server\MSSQL10.SQL2008\MSSQL\DATA\Sample.Db_log.ldf', NOUNLOAD, REPLACE, STATS = 10 There is no lock or security issues, the data base doesn't exist on the server. I can't figure it out. Any ideas?

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  • How to write text files with DOS line endings on linux

    - by gaumann
    I want to write text files with DOS/Windows line endings '\r\n' using python running on Linux. It seems to me that there must be a better way than manually putting a '\r\n' at the end of every line or using a line ending conversion utility. Ideally I would like to be able to do something like assign to os.linesep the separator that I want to use when writing the file. Or specify the line separator when I open the file.

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  • Using python to write text files with DOS line endings on linux

    - by gaumann
    I want to write text files with DOS/Windows line endings '\r\n' using python running on Linux. It seems to me that there must be a better way than manually putting a '\r\n' at the end of every line or using a line ending conversion utility. Ideally I would like to be able to do something like assign to os.linesep the separator that I want to use when writing the file. Or specify the line separator when I open the file.

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