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1500 questions
137
votes
9 answers

GLIBCXX_3.4.20 not found, how to fix this error?

Whey I try to run the program Layout Editor (available on this site) on Ubuntu 14.04.1 64-bit LTS I get the following output in the terminal: $ layout layout: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by…
Vesnog
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137
votes
4 answers

How to save a file using nano

I am trying to install Java via the terminal using the guide How to Install Oracle Java JRE on Ubuntu Linux. Everything went perfectly fine until "Step 11: Save the /etc/profile file and exit": I spent maybe 30 minutes figuring out what ^ means…
user288690
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137
votes
46 answers

What Custom Launchers and Unity Quicklists are available?

Please note that right now, most of the information contained below is outdated and cannot be updated. Be careful, most of this won't work on Ubuntu 12.04 and newer. Creating a custom launcher for Unity is simple. Quicklists provide an easy and…
nik90
  • 12,959
137
votes
10 answers

How to set up USB for Virtualbox?

I'm using Ubuntu Maverick and Virtual Box 3+. I have Windows 7 Ultimate. The problem is that it doesn't detect USB drives in Windows 7, but USB peripherals (mouse + keybord) are working. I followed these instructions, but I can't find the user group…
kst
  • 1,493
137
votes
8 answers

How to mount a new drive on startup

I have recently installed a new hard drive to my Ubuntu 10.0.4 box. I used System -> Administration -> Disk Utils to format the disk (ext4 file type) - but did not create a partition (is this advisable?). I have manually mounted the drive as…
Homunculus Reticulli
  • 2,553
137
votes
5 answers

Why choose a low latency kernel over a generic or real-time kernel?

After installing Ubuntu Studio 12.04, I have found that it uses a low latency kernel. I searched for an explanation and how to change back it to a real-time or generic one. However, it looks like this part of Linux hasn't been covered to explain…
Starx
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136
votes
2 answers

Root file system requires manual fsck

Whenever I switch on Ubuntu I always see the following message. (Initramfs): /dev/sda1 contains a file system with errors, check forced. Inodes that were a part of a corrupted orphan linked lost found. /dev/sda1 : UNEXPECTED INCONSISTENCY; RUN…
Abhishek Barman
  • 1,461
136
votes
9 answers

Verify if crontab works

I want to verify if a certain crontab works properly. I have added a job like this: */2 * * * * /path_to_my_php_script/info.php >/dev/null 2>&1 I know that i redirect to the null device, but i not sure if the above command is good. *Edit 1: In my…
croppio.com
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136
votes
8 answers

How do I install Adobe Acrobat in Ubuntu 16.04?

I know the thread How do I install Adobe Acrobat Reader deb package downloaded from Adobe website? However, there is no Linux anymore in the installation site here. Unsuccessful attempts I do DriraWassim's proposal which does not add anything to…
Léo Léopold Hertz 준영
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136
votes
4 answers

apt-get install vs pip install

I am a bit confused about the cases in which the above commands must be used when downloading python packages. I was trying to download a package named pyudev in accordance with an answer with this question. I executed this command : sudo pip…
Vineet Kaushik
  • 2,314
136
votes
9 answers

How to clear text in a file?

How to clear text that existed in a text file without opening it? I mean for example I have a file as hello.txt with some text data in it, and how can I clear the total text in that file without opening it? By this, I mean not using any editor like…
Raja G
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136
votes
14 answers

How to disable microphone from auto adjusting its input volume

I want to disable the way the microphone lowers itself depending on the input. Here is an image: The microphone started at 100% and slowly started to drop to where the image is showing. This is because of either a background noise or the user…
Luis Alvarado
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136
votes
6 answers

Where are the OpenVPN connection logs and configuration files?

I have problem connecting to OpenVPN server. Where are OpenVPN log files and how do I find the connection details?
Hojat Taheri
  • 5,539
136
votes
13 answers

Script to display all terminal colors

Throughout the internet I have seen many people with scripts that prints out a bunch of stuff in all the colors defined in ~/.Xdefaults. However when I try to use these, I always get error: Bad Substitution. Does anyone have a working script that…
John Howard
  • 2,095
136
votes
4 answers

Remove note about sudo that appears when opening the terminal

Whenever I open the terminal, To run a command as administrator (user "root"), use "sudo ". See "man sudo_root" for details. appears before the terminal. How do I get that to go away?
mouche
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