I am a new linux user and I am struck while attempting to run Super Beam. Whenever I use the commands:    chmod +x SuperBeam-5.0.3-linux.sh sudo ./SuperBeam-5.0.3-linux.sh   to run the program, I get an error on terminal:  Could not find or load main class com.liveqos.superbeam.desktop.SuperBeamApp
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When I try to run a simple Hello World program I keep getting a message saying Could not find the main class.   I found  which suggested that my CLASSPATH variable is messed up, but I couldn't find a way to fix it.  What am I doing wrong?
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I've upgraded my laptop from 17.04 to 17.10 and the super key no longer brings up the applications menu. Does anyone have any idea how I can change this?   Shortcuts menu doesn't let me change Super + A to just Super.  Edit: I'm running the standard desktop version of Ubuntu 17.10
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I accidentally deleted the symbol link /lib64/libc.so.6 -> /lib64/libc-2.12.so with  $ sudo rm libc.so.6   Then I can not use anything including ls command. The error appears for any command I type  ls: error while loading shared libraries: libc.so.6: cannot open shared object file: No such file or directory   I've tried  $ export LD_PRELOAD=/lib64/libc-2.12.so   After this I can use ls and ln ..., but still can not use sudo ln ..., sudo -E ln ..., sudo su or even su. I always get this err  sudo: error while loading shared libraries: libc.so.6: cannot open shared object file: No such file or directory   or  su: error while loading shared libraries: libc.so.6: cannot open shared object file: No such file or directory   It seems LD_PRELOAD works only for the current shell session of my account, but not for a new account like root or a new session.  It's a remote server so I can not use a live CD. I now have a ssh bash session alive but can not establish new ones. I have sudo privilege, but don't have root password.  So currently my problem is I need to run sudo sln -s libc-2.12.so libc.so.6 to re-create the symlink libc.so.6, but I  can not run sudo without libc.so.6.  How can I fix it? Thanks~
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I went into Live CD and activated Terminal.  Then, I typed gksu nautilus to gain temporary access to my root directory. Once the Manager window opened, I clicked on File System and navigated to the /etc/default/grub directory. I then double clicked on the Grub file to make changes to the TIMEOUT and TIMEOUT_QUIET.  I saved the file after I made the changes. Then I went back to the terminal mode and typed:  gksu update-grub   The error message I got was:     Can not find a device for / (is /dev mounted?)   I'm not sure what to do at this point. How can I run update-grub to update the changes? Thanks in advance for your help. Please be very detailed and specific with your response as I am totally new to this environment.
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I installed CentOS 5.5 on my VMWare 8 recently and I am trying to add a new user on the system. I am unable to add the user unless I use su - option. I believe it has to do something with path not set properly.  I updated the path and here is what it looks like  /usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/home/uone/bin:/sbin   I believe the command is in /sbin dir which is already a part of path. Can anyone suggest me what else I might be missing?
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I created a new user with useradd name and forgot to use -d -m to create their home directory.  I tried making one, copying the contents of /etc/skel, and chowning everything to the new user.    Aliases don't work, such as ll, and I just have a $ at the command prompt, instead of name@server ~$. Also, using the scroll wheel dumps garbage on the command line :(  How do I fix this, or is it easier to delete the user and start over?
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I'm trying to install llvm. I cloned the repository and ran ./configure. Now, I need to run sudo make install. When I run this, I get the following errors:  harshilsharma63@ubuntu:~/llvm$ sudo make install [sudo] password for harshilsharma63:  llvm[0]: Installing include files make: execvp: /home/harshilsharma63/llvm/autoconf/mkinstalldirs: Permission denied make: *** [install-local] Error 127 harshilsharma63@ubuntu:~/llvm$ sudo make install llvm[0]: Installing include files make: execvp: /home/harshilsharma63/llvm/autoconf/mkinstalldirs: Permission denied make: *** [install-local] Error 127   I have installed build-essentials. I cloned the repository using svm in fedora and copied the downloaded files from Fedora -> Windows -> Ubuntu.  Note: I'm using Ubuntu 12.04
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I would like to create a symlink to ~/foo/ but when I write that, ~ is always resolved to the absolute home path. I've used ../s in the past and they work fine, is ~ not allowed?  The reason I'd like to do that is because ~ has a different absolute path depending on the machine and Linux/OSX, but always points to my home directory.  I'd like to include such a link in a git repo sync'd across several machines.
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When I run sudo gedit /path/to/some/random/file I get the following error    ** (gedit:6262): WARNING **: Command line `dbus-launch --autolaunch=7f8731869e1c690b8205727e0000000a --binary-syntax --close-stderr' exited with non-zero exit status 1: Autolaunch error: X11 initialization failed. Cannot open display:  Run 'gedit --help' to see a full list of available command line options.     Using gksudo doesn't help either which returns    Cannot open display:  Run 'gedit --help' to see a full list of available command line options.     Any help guys. I need to have this capability to open files in Gedit as root. I found this question with the same error but no solution     EDIT I found this post in . These are the instructions:     echo $DISPLAY # you'll be needing this value 3 lines below sudo -i # or "su -" on older Slackwares xauth merge ~alien/.Xauthority # use your own username here instead of "alien" export DISPLAY=:0.0 # use the value of DISPLAY you've seen 3 lines before     On coming to command #3, I got this error xauth:  file /root/.Xauthority does not exist    Maybe this new info can shed more light.
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I was hit by some hardcore power-tripping forum mods on the Arch Linux forum, so here I am.  I'm trying to run GUI apps on WSL, such as dolphin or kate. However, none of them can find libQt5Core.so.5, despite it being installed in /usr/lib as you'd expect. Here's a terminal transcript:  /u/lib » DISPLAY=:0.0 dolphin dolphin: error while loading shared libraries: libQt5Core.so.5: cannot open shared object file: No such file or directory /u/lib » pwd /usr/lib /u/lib » ls -la | grep Qt5Core -rw-r--r-- 1 root root     1143 Aug  7 06:05 libQt5Core.prl lrwxrwxrwx 1 root root       20 Aug  7 06:05 libQt5Core.so -&gt; libQt5Core.so.5.11.1* lrwxrwxrwx 1 root root       20 Aug  7 06:05 libQt5Core.so.5 -&gt; libQt5Core.so.5.11.1* lrwxrwxrwx 1 root root       20 Aug  7 06:05 libQt5Core.so.5.11 -&gt; libQt5Core.so.5.11.1* -rwxr-xr-x 1 root root  5234312 Aug  7 06:05 libQt5Core.so.5.11.1* /u/lib » ldd `which dolphin`         linux-vdso.so.1 (0x00007fffdb426000) ...         libQt5Core.so.5 =&gt; not found /u/lib » pacman -Qk qt5-base qt5-base: 3546 total files, 0 missing files   Note that other GUI apps work fine - anything compiled against GTK, including Firefox, work perfectly. I just have to set the $DISPLAY variable. Not setting the var doesn't help, as you'd expect.  Any ideas? Thanks!
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I have a program on my path.  The program runs when executed with a full path specified.  But the program cannot be found when I run it with just its name.    Essentially, I want to understand how the below output is possible, and how to fix it so that my program can actually be found without a full path specified:  root:/usr/local/bin# ./siege **************************************************** siege: could not open /usr/local/bin/etc/siegerc run 'siege.config' to generate a new .siegerc file **************************************************** root:/usr/local/bin# echo $PATH /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games root:/usr/local/bin# siege bash: /usr/bin/siege: No such file or directory root:/usr/local/bin# wtf!?!?   I'm on Ubuntu 12.04 using bash.  Also please note the warning output from siege is not relevant for the purposes of this question, as I am only interested in whether or not the program can be found and invoked.
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I've upgraded two laptops to Ubuntu 20.04 LTS.  On one of them pressing Super (aka the Windows Logo key) opens the Activities overview.  On the other one it doesn't, and I have to use Super+S, or Alt+F1.   The main difference between the laptops is that one uses Ubuntu on Wayland (where Super works fine), and the other one uses Ubuntu on Xorg (where Super doesn't work).  How do I make Super work on both laptops?
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While visiting Super User, I get this error in the error console on Firefox:     Timestamp: 5/15/2013 10:10:28 AM    Error: no element found    Source File:     Line: 1   Attempting to visit /gps or /gps/event directly results in a 404 ("page not found"). What is the function of the /gps page, and are there any other "hidden" subpages of this kind?
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For some reason, when I try to run any programs (I am trying to run a rootkit hunter: rkhunter) as root on the command line with sudo like this:  sudo rkhunter   Then I get this message:  You must be the root user to run this program   and then I get these lines:  sudo: error in /etc/sudo.conf, line 0 while loading plugin 'sudoers_policy' sudo: /usr/lib/sudo/sudoers.so must only be writable by owner sudo: fatal error, unable to load plugins   I try typing in just sudo but that comes up with the same three errors as above. Also in /etc/ sudo.conf does not exist.  I cannot run any other programs as root through sudo. It was also strange because I could run as root a day ago. I would like it to work.  Just so you know, I am the only user of this computer, and the administrator, running Lubuntu 14.04.1.
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I've just updated to macOS 10.12 and when I try to execute srm in Terminal, it says -bash: srm: command not found.   Is srm removed? How to fix this?
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I recently moved to Linux, and I am in love with the experience. Opinions apart, I am having problems when running sudo dpkg --configure -a  My computer stops processing the command here:  You may know Adobe Flash Player is no longer supported, and I believe that could be why the command is unable to load pepperflashplugin-nonfree. I have tried fixing the problem by checking older posts here, but none of them was able to fix this problem.
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I keep seeing places refer to the "multiverse" repository as a place I can get software, how can I enable this repository? Please specify how to do this graphically and via command line.