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1500 questions
165
votes
9 answers

How to roll back Ubuntu to a previous version?

I just installed a new version of Ubuntu and I want to roll it back to the previous version. How can I do that? Is that even possible?
Mokus
  • 4,502
165
votes
10 answers

Arrow keys, Home, End, tab-complete keys not working in shell

I have installed ubuntu minimal(mini.iso) on my vm. I then used recovery mode to login as root and create an account with useradd -m admin and then set a password with passwd admin. When I login on the new account, instead of the normal prompt I…
user145166
165
votes
9 answers

Command to move a file to Trash via Terminal

I would like to know if there is a command I can issue in a terminal so I do not classically remove (rm) the file, but instead move it to trash (i.e. Nautilus Move to Trash behavior). In case there is such a command, I would also be interested in…
Rasmus
  • 8,375
165
votes
5 answers

How to get grub2 to remember last choice?

Grub2 - Community Ubuntu Documentation says the following: Saving an OS can be achieved by running sudo grub-set-default if DEFAULT=saved is set in /etc/default/grub. It may also be saved if GRUB_SAVEDEFAULT=true is also set in…
Jay Sullivan
  • 1,989
165
votes
10 answers

How do I use 'chmod' on an NTFS (or FAT32) partition?

I have a script that I need to execute on an NTFS partition. The script's permission is set to 600. I attempted to modify the permissions by running chmod 755 script.sh, which doesn't report a failure or anything - but it also doesn't change the…
Nathan Osman
  • 32,155
164
votes
2 answers

How to install .bundle packages in Ubuntu?

I've recently downloaded a package with .bundle extension. it's VMware-Player-6.0.3-1895310.x86_64.bundle. I want to install vmware-player, but when I open that, it opens with text editor.
αғsнιη
  • 35,660
164
votes
7 answers

Missing date & time applet from top Unity panel

I like Unity very much. Recently, I installed Compiz manager and Nautilus Elementary also then tried to Play. During some of my playing around, Unity's clock applet has vanished. I want to make it show the time again. How can I do this?
Dev
  • 1,641
164
votes
13 answers

Unable to use IntelliJ IDEA keyboard shortcuts on Ubuntu

I am very new to Ubuntu, and I'm having a problem that I don't know how to get it fixed. I even tried looking it up on the web for answers, but maybe I don't know the right terms to search for it. I work with IntelliJ IDEA, an application for…
Rodrigo Sasaki
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  • 14
164
votes
5 answers

How to remove Postgres from my installation?

I have ubuntu 9.10(karmic), and when I attempted to install a new program, the postgres was installed as a dependency of that program, no problem at all if the installation occurs with success, but there was an error, and the Postgres was not…
devasia2112
  • 1,799
164
votes
3 answers

Does ssh key need to be named id_rsa?

I have come across this problem a couple of times when creating build servers with keyed authentication. I was wondering if anyone else has experience this. I have a couple of keys for my current user that may connect to different machines. Let say…
myusuf3
  • 34,189
164
votes
15 answers

Create a single pdf from multiple text, images or pdf files

I have a bunch of text files, images and pdf files which I want to convert into a single pdf file. How do I do it?
AJha
  • 2,843
164
votes
6 answers

How to set a short password on Ubuntu?

When I install the Ubuntu, I set a short password(<4). Now I want to change the other short password by "passwd" or change passphrase on "Password and Keys" program, it needs a password >4 char.
Lei Ming
  • 1,779
164
votes
9 answers

Hide current working directory in terminal

As a default, the terminal prompt shows something like: user@system:/folder1/folder2/folder3/folder4$ the deeper you go into the filesystem, the less space is left for typing in commands. Can I change this to only show something like: > I mean, I…
Theodor
  • 1,735
164
votes
13 answers

How do I delete multiple lines in nano without affecting the clipboard?

I can select all file by going to the 1st line Alt+\, start marking the text by Alt+A, go to the last line by Alt+/ But there, I don't know which key to remove the selected text. Hit delete doesn't work for me but Ctrl+K to cut the text will destroy…
Nam G VU
  • 2,268
164
votes
14 answers

How to fix missing GPG keys?

I have just installed Ubuntu 12.04 and I added some repo, and when I did apt-get update, I got missing gpg key. Following command seems to doesn't work for me: apt-get update 2> /tmp/keymissing; for key in $(grep "NO_PUBKEY" /tmp/keymissing |sed…
Fih
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