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1500 questions
105
votes
2 answers

Delete whole line in nano editor

some times while I am editing my files with nano I am facing difficulty while deleting some big line, I need to hold Del key for long time. is there any shortcut I can found to delete the total line at a time ? I have checked the man-page , still no…
Raja G
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105
votes
11 answers

How can I update youtube-dl?

I use youtube-dl to download videos for watching later offline. Usually, it works fine. However, due to frequent changes on the video sites, it sometimes requires a quick update. It wasn't a problem before on 13.04 but after upgrading to 13.10, I…
Damn Terminal
  • 2,776
105
votes
7 answers

No Dropbox icon in the indicator panel?

I have recently installed Ubuntu on my machine and everything has been working fine, except I don't see the Dropbox indicator. I have installed and re-installed Dropbox multiple times and can confirm that it's running in the background (with ps -e |…
tusharkant15
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105
votes
8 answers

How to remove lines from the text file containing specific words through terminal?

How to remove all the lines from the text file containing the words "cat" and "rat"?
PersonX
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105
votes
2 answers

Compressing folders with password via command line

I would like to know whether it is possible to do the following via CLI. I have a Folder F which contains several sub folders and some files. I want to compress folder F into .zip file with the "password-only-extract".
Varun
  • 2,129
105
votes
11 answers

Why do I need to type `./` before executing a program in the current directory?

While executing a C program, a.out , using the Ubuntu terminal, why do I always need to type ./ before a.out , instead of just writing a.out ? Is there solution for this?
Prashant Chikhalkar
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105
votes
3 answers

What is apparmor?

I hear a lot of talk about apparmor, I want to know the following: What is apparmor? How does apparmor work?
Alvar
  • 17,028
105
votes
8 answers

Can I run Android apps on Ubuntu?

Is it possible to run Android apps on Ubuntu? And I don't mean inside an emulator, but natively, as you would with any other application installed using the Ubuntu Software Center.
mxhernaiz
  • 1,419
105
votes
7 answers

How can you unhold (remove a hold on) a package?

I used synaptic to lock the version of pidgin-data - how can I change the status from hold back to normal, so that it gets upgraded properly? The PinningHowto says that doing an apt-get install packagename should remove the hold , but running dpkg…
David Fraser
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105
votes
9 answers

What's the best, simplest OCR solution?

I'd like to scan a good amount of papers I have lying around, with the least possible hassle. I would like to convert them to images using Simple Scan, then convert them to text using OCR. Is there a good OCR app with a GUI that will give me good…
Bou
  • 4,552
105
votes
4 answers

What are the pros and cons of having a separate home partition?

This is not a question about how to create a home partition, just as a caveat. :) What are the pros and cons to having a separate home partition? How do I know if having one is right for me? Will it increase or decrease speed of file retrieval? Are…
Ryan McClure
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105
votes
8 answers

The following signatures were invalid: EXPKEYSIG 1397BC53640DB551

This is Issue 952287: [User Feedback - Stable] Reports of Chrome for Linux failing to install/update due to expired GPG signing key Today, running apt in all my machines gives this error with the Google PPA (for google-chrome ): me@mymachine:~$ sudo…
Leo
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104
votes
17 answers

How to view CHM files?

How to view CHM files in Ubuntu?
Olivier Lalonde
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104
votes
11 answers

"physical block size is 2048 bytes, but Linux says it is 512" when formatting USB - How to create a bootable USB without this error

I was using: dd if=/path/to/my/ubuntuiso/ubuntu.iso of=/dev/sdb1 bs=4M && sync In order to create bootable Ubuntu USB drives on older Ubuntu versions. It was working perfectly. Sometimes I used the Startup Disk Creator program, which worked well.…
Severus Tux
  • 10,136
104
votes
9 answers

Problem with installing Steam on Ubuntu 15.04+

Actually I have installed the new Ubuntu 15.04 64bit, and when I'm trying to install Steam on it, there is a problem. In fact I have downloaded the deb package from steam website, installed it and when I start it nothing happens. I tried to start it…
saber hammami
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