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• security issue of Linux sudo command?

  - by George2

  Hello everyone, 1. I am using Red Hat Enterprise 5 Linux box. I find if a user is in /etc/sudoers file, then if the user run command with sudo, the user will run this command with root privilege (without knowing root password, the user runs sudo only need to input the user's own password in order to run a command with sudo). Is that correct understanding? 2. If yes, then is it a security hole? Since users other than root could run with root privilege? thanks in advance, George

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• NET START command not passing parameters in Windows Server 2008

  - by Amanbbk

  My application calls a Stored Procedure, through the stored procedure I am calling a Windows Service using the NET START command as follows: SELECT @Cmd = 'Net Start ServiceName /"' + @param1 + '" /"' + @param2 + '"' Now the parameters passed here are not reaching the OnStart method. These values are blank. Protected Overrides Sub OnStart(ByVal args() As String) Try service1= New Service service1.param2 = args(1) service1.param1 = args(0) Here I get args(0) as the name of service instead of the value that is passed, and args(1) is blank. Although the args.Getlength(0) returns 2. The service starts successfully, it invokes the executable, but the parameters are not there. What can be the reason? Administrative access might be required in NET START command? Has the syntax changed for NET START command in Windows Server 2008? Windows Services do not accept parameters in Windows Server 2008? The same thing is running fine on Windows Server 2003.

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• rsync command deletion error "IO error encountered -- skipping file deletion"

  - by Jam88

  I use rsync command to take backup of files from one of my ubuntu server to another ubuntu machine. Backup server trigger a script that use rysnc command. Here is the command I use rsync -rltvh --partial --stats --exclude=.beagle/ --exclude=.* --delete-after root@live_server:/home/ /home/live_server_backup/home /tmp/logfile.log 2&1 live_server is ssh-able without password. So it works. Now problem is with --delete-after option After all file synced .At the end I can see deletion procedure skipped.logfile error is like IO error encountered -- skipping file deletion When i tried to find log there were some error while file sync rsync: send_files failed to open "/home/xyz/Desktop/PPT_session_1_context.pdf": Permission denied (13) So my understanding is as rsync could not read all the files from target for safety reason it is skipping the file deletion. Is there any way to make --delete-after work even if there is some permission error? I do not want to use force deletion as it will be dangerous in some situation.

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• run or send a command to a tmux pane in a running tmux session

  - by cjroebuck

  I want to write a shell script which will attach to a named tmux session, select a window (or pane) in that session and run a command in that selected window (or pane). How do I do this from a bash script? I know tmux new-window -n:mywindow 'exec something' allows you to send commands to a freshly created window. But I need something like tmux select-window -t:0 'my command' I suppose I could use send-keys but seems like their should be something that takes a command or list of commands that get run.

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• No GUI after upgrade to Ubuntu 9.10 (boots to command line)

  - by Gathris

  I have just upgraded to Ubuntu 9.10 (network upgrade using the update manager, from 9.04 which had different graphics related problems) and when I try to boot into it all I get a small Ubuntu logo, flickering text and then the tty1 command line with a logon prompt. startx gives following error: Fatal server error: no screens found I traced down a tutorial that said I needed the latest graphics drivers (Gigabyte ATI Radeon 4650 HD installed with 9.10 catalyst drivers) so I did using the 'sh' command and a USB stick (I have a working Windows partition) and it installed fine but did not fix the problem. Edit: Thanks to UK and Arjan van Bentem below I was able to understand the full error message of start x: Parse error on lone 2 of /etc/X11/xorg.conf 'nameserver' is not a valid keyword in this section Fatal server error: no screens found This has nothing to do with a graphical error (sorry if I misled anyone) but the xorg.conf file has 3 lines in it and lines 2-3 have an entry 'nameserver'. Using the nano command I commented out (using a # before the entries) the nameservers and can now boot Ubuntu. Thanks to everyone for their help.

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• Linux: Schedule command to run once after reboot (RunOnce equivalent)

  - by Christopher Parker

  I'd like to schedule a command to run after reboot on a Linux box. I know how to do this so the command consistently runs after every reboot with a @reboot crontab entry, however I only want the command to run once. After it runs, it should be removed from the queue of commands to run. I'm essentially looking for a Linux equivalent to RunOnce in the Windows world. In case it matters: $ uname -a Linux devbox 2.6.27.19-5-default #1 SMP 2009-02-28 04:40:21 +0100 x86_64 x86_64 x86_64 GNU/Linux $ bash --version GNU bash, version 3.2.48(1)-release (x86_64-suse-linux-gnu) Copyright (C) 2007 Free Software Foundation, Inc. $ cat /etc/SuSE-release SUSE Linux Enterprise Server 11 (x86_64) VERSION = 11 PATCHLEVEL = 0 Is there an easy, scriptable way to do this?

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• Starting and stopping X11 and LXDE from command line

  - by Radian

  I have a Raspberry Pi with Debian Wheezy (Raspbian) and so far I've managed to learn quite a lot about Linux just playing around, but I have a few questions for all you seasoned Linux pros out there. 1) From command line, if I execute startx, X11 will launch followed by LXDE. If I had a monitor connected, I'm imagining I would see a transition from command line to the desktop environment. Can I launch X11 first with x, then start LXDE on top of X11 afterwards with /etc/init.d/lxdm start (is this correct?) and get to the same result as startx? 2) Instead, let's say I executed /etc/init.d/lxdm start alone, would X11 start automatically (since LXDE relies on X11)? 3) From desktop, if I CTRL+ALT+F1 to get back to command line, then I should be able to shutdown LXDE using /etc/init.d/lxdm stop. Does X11 automatically close with the termination of LXDE? 4) What is the proper/safe way to shutdown X11? Thanks

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• create print server port via command line error Win 8

  - by Benjamin Jones

  I need to create a Print Server Port via commandline in Windows 8 Per Google search I should be using prnport.vbs script to do so: cscript c:\Windows\System32\Printing_Admin_Scripts\en-US\prnport.vbs -a -s \\192.168.113.253 -r Xerox_192.168.113.253 However I get this error: ** Unable to connect to WMI service Error 0x800706BA The RPC Server is unavailable. ** I looked at local services and both RPC and WMI services are started . Also I made sure add remote admin rule to Windows Firewall via command line without success!: netsh advfirewall firewall set rule group="windows management instrumentation (wmi)" new enable=yes netsh advfirewall firewall set rule group="remote administration" new enable=yes NOTE: If I use the GUI to create the print server port then add the printer via command line: rundll32 printui.dll,PrintUIEntry /if /b "Xerox WorkCenter 7535" /F C:\Windows\Inf\WC7545-7556_PCL6_x64_Driver\x2DNORX.inf /r "Xerox_192.168.113.253" /m "Xerox WorkCentre 7535 PCL6" THE PRINTER IS SUCCESSFULLY ADDED. So its NOT the printer it self! So how can I successfully add a print server port via command line? Thanks

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• Mapping a Piped Shell Command in Vim

  - by michaelmichael

  In a previous question I asked about mapping evaluated code to a new window in MacVim. I got a great solution, but it presented another question: How can I map a key command in my .vimrc that involves piping output in the shell? As a simple example, let's say I wanted to pipe the results of ls -a to a new MacVim window. From the Vim command line I can enter !ls -a | mvim -, and the results will appear in a new window. Great! Now, I add that to my .vimrc: nmap <Leader>r :w !ls | mvim<CR> Vim now throws an error every time I try to source my .vimrc, which reads as follows: E492: Not an editor command: mvim<CR> Any ideas on how to overcome this?

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• Python: Check existence of shell command before execution

  - by Gabriel L. Oliveira

  Hi all. I'm trying to find a way to check the existence of a shell command before its execution. For example, I'll execute the command ack-grep. So, I'm trying to do: import subprocess from subprocess import PIPE cmd_grep = subprocess.Popen(["ack-grep", "--no-color", "--max-count=1", "--no-group", "def run_main", "../cgedit/"], stdout=PIPE, stderr=PIPE) Than, if I execute cmd_grep.stderr.read() I receive '' like the output. But I don't have the command ack-grep on my path. So, why Popen is not putting the error message on my .stderr variable? Also, is there a easyer way to do what I'm trying to do?

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• I run a command twice - I'm wondering if it'll be a problem

  - by Delirium tremens

  "In computing, tee is a command in various command-line interpreters (shells) such as Unix shells, 4DOS/4NT and Windows PowerShell, which displays or pipes the output of a command and copies it into a file or a variable. It is primarily used in conjunction with pipes and filters." I run echo FRAMEBUFFER=y | sudo tee /etc/initramfs-tools/conf.d/splash twice. I opened the conf.d folder in Nautilus, but there isn't a splash file nor directory. I expected a file to be there with FRAMEBUFFER=y inside but there isn't. Is this going to be a problem?

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• Change Read/Write permissions from command line or VB script without cacls

  - by Sam I am

  I need a way to automatically change the read/write permissions on a folder, on an Windows XP Embedded machine. The XPE image I'm using doesn't have all of the standard Windows tools, and apparently cacls is one of those tools that it doesn't have. If I simply type cacls into my command window, it tells me 'cacls' is not recognized as an internal or external command, operable program or batch file. Is there a way for me to change file/folder permissions in Windows XPE without the CACLS command, or is there a way I can download a version of cacls.exe that will run on the XPE machine?

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• need to run command against multiple lines in file that start with ica-tcp

  - by Nick Parsells

  I want to run a command on each line of a file I have, however its a bit more complicated then I originally thought. The file contents look like this typically; however there are sometimes more connections: SESSIONNAME USERNAME ID STATE TYPE DEVICE services 0 Disc console 1 Conn t-rpal 48 Disc ica-tcp#0 bpofiretest 50 Active wdica rdp-tcp#2 a-nparsells 51 Active rdpwd ica-tcp 65536 Listen rdp-tcp 65537 Listen The command I want to run is reset session ica-tcp#0. I also want to run the same command on any additional connections that start with ica-tcp that the scripts finds in the file. How can I write a script like that in powershell? thanks!

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• Log "date -s" command

  - by LinuxPenseur

  Hi, I know that the date -s <STRING> command sets the time described by the string STRING. What i want is to log the above command whenever it is used to set the time into the file /tmp/log/user.log. In my Linux distribution the logging is done by syslog-ng. I already have some logs going into /tmp/log/user.log. This is the content of /etc/syslog-ng/syslog-ng.conf in my system for logging into /tmp/log/user.log destination d_notice { file("/tmp/log/user.log");}; filter f_filter10 { level(notice) and not facility(mail,authpriv,cron); }; log { source(s_sys); filter(f_filter10); destination(d_notice); }; What should i do so that date -s command is also logged into /tmp/log/user.log

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• Can't run command with sudo, even with the full path, I got an error

  - by Keating Wang

  the command starling is /home/keating/.rvm/gems/ruby-1.9.2-p290/bin/starling when run starling, get the error Permission denied when run rvmsudo starling, works well when run sudo starling, get the error sudo: starling: command not found when run sudo /home/keating/.rvm/gems/ruby-1.9.2-p290/bin/starling, get the error: /home/keating/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:247:in to_specs': Could not find starling (>= 0) amongst [minitest-1.6.0, rake-0.8.7, rdoc-2.5.8] (Gem::LoadError) from /home/keating/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:256:into_spec' from /home/keating/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems.rb:1229:in gem' from /home/keating/.rvm/gems/ruby-1.9.2-p290/bin/starling:18:in' I really want to run the command with sudo, because the error above is the same as running rvmsudo service starling start(I had set starling as a service of the os)

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• SCP command Clarification

  - by david.colais

  I'm using the scp commands to pull some files from the remote server and one variation of the command is not working. I have 2 files names one.xml and two.xml in a remote server and I'm pulling these two files into the current dir using the following command: scp [email protected]:/student/class/Intermediate/one.xml . scp [email protected]:/student/class/Intermediate/two.xml . The above command works fine but if I use wildcards to pull all the xml files in a single shot as shown below it returns scp: No match. scp [email protected]:/student/class/Intermediate/*.xml . Why is it working if I pull the files individually and not working if I try to pull using wildcards.

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• Linux - How to run Firefox with AT command

  - by conualfy

  I try to run a specified command on a desired time. I found at for this, and it seems to work fine if I run: echo "ls -al / > /home/florin/test.txt" | at 4:21am But I want to run a different thing: /usr/bin/firefox -new-tab http://google.ro I tried adapting the first line with my action (running it in terminal opens a new Firefox tab with http://google.ro, so the command is correct), but with at, it does not work: echo "firefox -new-tab http://google.ro" | at 4:23am The task seems to be scheduled, but it does not run. When running the previous line I get the default reply from at: warning: commands will be executed using /bin/sh Should my Firefox command be differently run in sh? Is there a way to do my action with at, or some other way? Thanks a lot!

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• Using Powershell's Invoke-command to install .exe on remote computer

  - by Bernie

  I have an .exe I would like to install on a large farm of Windows Server 2008 computers. I am attempting to use Powershell remoting. I have this command which works locally: invoke-command {& "N:\Temp\fortify_installer\HP-Fortify-3.20-Analyzers_and_Apps-Windows-x86.exe /s /f1N:\Temp\fortify_installer\response.iss"} But when I add the -computername flag it seems to go off to nowhere, and the installer is never run on the remote machine. I can launch notepad.exe via the same command and it runs. Does it have something to do with it being an installer, or something else? I realize many versions of this question have been asked and I have read them, but I am still confused as to why this doesn't work.

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• linux: selective sudo access for a particular command

  - by bguiz

  Hi, Is it possible to grant a particular user sudo access for one particular command only? Thanks -- More info: We farm out lengthy optimisation runs to each other's boxes over ssh. These runs take hours, sometimes days. The shutdown command can only be run in sudo. Being conscious of my environmental footprint, I would like to give the initiator(s) of these runs sudo access to the shutdown command on my box, without sudo access for everything else - so that they may shutdown my machine when they no longer need it. I am aware that I can schedule a shutdown before I leave my box, but I am looking for a better solution.

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• using git on DOS command line asks for password - but not when using TortoiseGit or gitBash

  - by Sandy

  I would like to use the DOS command line to enter the command: git clone "git_path.git" myDir It asks me to enter a password which I would like to avoid. I usually use TortoiseGit to do all git related operations. I would like to setup cruisecontrol using ant with a custom git task. Therefore I need to perform git clone on the command line in Windows 7. But it only works using git bash and not DOS. According to other forum entries, I tried to convert the key with puttyGen and put the file id_rsa in c:/Users/myName/.ssh I also added an authorized_keys file but it still asks for a password. Any ideas? Thanks

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• Add custom command line to extended context menu in Windows 7

  - by 280Z28

  I have an application pinned to the task bar. 90% of the time, I run it with no additional command line options, so I can either click it (if not already open), or right click the icon and click the application name to open a new instance. I want to make it where when I right click it, there are 2 options listed: the first is the program with no command line options and the second is the one with a custom command line (that I hard code). If this is impossible, it would be tolerable to add it to the extended context menu (shift + right click the icon), but I prefer the former.

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• Auth failed running command from shell script

  - by CSchulz

  I try to run following command from shell script: svn checkout http://url/ --username user --password password --non-interactive --no-auth-cache . It fails always with following error: svn: OPTIONS of 'http://url/': authorization failed: Could not authenticate to server: rejected Basic challenge (http://url) Here the call out of my script: $(svn $command $url $auth --non-interactive --no-auth-cache .) Running the same command from the terminal works fine. What is the difference between running from shell script and terminal? EDIT: Here some version information: OS: Porteus 1.0 based on Slackware 13.3 Subversion: subversion-1.6.16-i486-1

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• tab completion for service command on debian

  - by markus

  I have two systems with debian squeeze installed. On one system when I type: service <TAB> it shows me all available service (from /etc/init.d) on the other system it shows me all files from the current directory. Does anyone know which setting changes that behaviour ? UPDATE: The file /etc/bash_completion.d/service was missing. I copied it from the machine where it is working. If I type complete -p | grep service it shows me: complete -F _service service On the machine where it is not working that command shows me nothing. I executed complete -F _service service in the command line, after that, the command service <TAB> shows me: service -su: completion: function `_service' not found this function is defined in the service file I recently copied, for some reasons it can't be found ...

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• Microsoft deployment toolkit 2010 failure message

  - by elhombre

  Hi all I am having a problem with the deployment of Windows 7 from a server with Microsoft Toolkit 2010. When deployment has finished I get a Windows error report which shows following message. FAILURE (Er): 70: CreateObject(Microsoft.BDD.Utility) - Permission denied Litetouch deployment failed, Return Code = - 2147023589 0x8007051B I don't get it what Microsoft.BDD.Utility is exactly and when this utility is used (Tasksequence?) ? Can anyone help me on this problem?

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• on SSH login, get message 'Could not chdir to home directory"

  - by joachim

  I am SSHing into a Mac OS X server running Tiger. When I log in I get put in the root directory and shown this message: Could not chdir to home directory : No such file or directory My $HOME variable seems to be empty. I've googled the problem and found a mailing list thread which suggests using dscl to set up the home directory, but I've done that and the problem still persists even though now dscl correctly reports: $ dscl . -read /users/me NFSHomeDirectory NFSHomeDirectory: /Users/me

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