71
votes
Is there a terminal command to list folder size and corresponding file sizes within on Ubuntu 14.04 (Trusty Tahr)?
I like to use simply:
du -chd 1 | sort -h
It outputs the total size of each sub-directory from the current directory location (the "1" above), as well as a total of all sub-directories, and sorts it ...
- 811
60
votes
Accepted
cURL on Ubuntu 14: all Let's Encrypt certificates are expired (error 60)
The reason is that the "DST Root CA X3" certificate has expired yesterday.
To fix it, just disable the certificate on your server. Run:
sudo dpkg-reconfigure ca-certificates
On the first ...
- 1,121
31
votes
cURL on Ubuntu 14: all Let's Encrypt certificates are expired (error 60)
Edit the file /etc/ca-certificates.conf
Find and comment with ! the line like this
!mozilla/DST_Root_CA_X3.crt
Save the file and update certificates with command
sudo update-ca-certificates
- 459
26
votes
How can I remove the ^M from my file in sublime text 3?
This can be done without a plugin via the menu at the top or though the statusbar (but you need to enable the feature).
To change it through the menu at the top click View -> Line Endings -> Select ...
- 361
19
votes
Hyper-V Clipboard and Integration Services in Ubuntu
Since this question was asked (re ~ Ubuntu 15.04) things have progressed significantly with regards to Hyper-V & Ubuntu 18.04.1 with regards to ‘Enhanced Session Mode’.
There are two approaches ...
- 574
18
votes
How to sign into "root" account by default on Windows Subsystem for Linux Bash terminal
In a command prompt with elevated permissions run the command lxrun /setdefaultuser root
lxrun is the tool for performing administrative operations on the LX subsystem.
- 181
18
votes
Accepted
How to sign into "root" account by default on Windows Subsystem for Linux Bash terminal
The command to set the default Linux user is different in different versions of Windows.
For versions of WSL up to the Fall Creators Update, run the following command in an elevated Windows command ...
- 377
18
votes
Accepted
Can I map a IP address and a port with /etc/hosts?
Can I map a IP address and a port with /etc/hosts
No.
The /etc/hosts file is part of your system's domain name resolver (it will check this file, then check DNS).
The resolver's job is to convert ...
- 74k
17
votes
How can I remove the ^M from my file in sublime text 3?
You can use dos2unix command in linux (package dos2unix) or change line endings in Sublime Text under menu item View / Line Endings.
- 171
15
votes
Accepted
Disabling OOM killer on Ubuntu 14.04
This is a XY problem; that is, you do have a problem (X), whether you know it or not, and believe you can solve things by solving a different problem, which is problem Y.
Why is it that you want to ...
- 8,465
10
votes
Hyper-V Clipboard and Integration Services in Ubuntu
Unfortunately it doesn't work. It looks like the correct answer here is to either:
SSH into your box so you can cut & paste into the your Windows SSH
window
Use Oracle's VirtualBox. Cut & ...
- 376
9
votes
Accepted
useradd user with group with same uid and gid
Thanks to Tom Yan, I've ended up solving my issue by creating a group with the same name then added the user to that group. So I did the following:
sudo groupadd -r -g 1234567 nexus \
&& ...
- 331
8
votes
Can I map a IP address and a port with /etc/hosts?
This solution worked for me with nginx
If you are using nginx you can use Nginx as reverse proxy and do something like this below
Example
server {
listen testdev.com:80;
server_name ...
- 181
8
votes
How can I remove the ^M from my file in sublime text 3?
^M is \r (Control-M, or carriage return).
This is likely because the user who committed the file was using windows, which uses \r\n for its line endings. Linux uses only \n, hence you see the ^M at ...
- 20k
7
votes
Ubuntu turns on webcam but black screen in cheese
I know this sounds stupid, but it's worth a try.
Some laptop models have a physical shutter, so the reason for the black screen is because the shutter's closed.
You can usually open it with a ...
- 171
7
votes
Trimming NTFS and ext4 Formatted SSD
TRIM is a file system level operation and must be supported for each file system you are using. The ext4 driver supports the fstrim command under Ubuntu 14.04 but the NTFS driver does not. You need a ...
- 283
7
votes
Unable to form a link of a file which is in sites-available to a directory sites-enabled in remote server using ansible?
Set force=true to create the symlink.
force the creation of the symlinks in two cases:
the source file does not exist (but will appear later);
the destination exists and is a file (so, we ...
- 228
7
votes
Accepted
How do I install Clang 4.0 on Ubuntu 14.04?
I believe you can do it this way:
sudo apt-add-repository "deb http://apt.llvm.org/trusty/ llvm-toolchain-trusty-4.0 main"
sudo apt-get update
sudo apt-get install clang-4.0 lldb-4.0
This is based ...
- 55.6k
7
votes
cURL on Ubuntu 14: all Let's Encrypt certificates are expired (error 60)
FYI on CentOS like (RPM Based) systems, use:
yum reinstall ca-certificates
- 179
6
votes
Accepted
Prevent Ubuntu 14.04 from locking on virtualbox if Windows is locked
As thomasa88 suggests, the Win+L command to lock your screen will be received by both your host OS (Windows 7) and your guest OS (Ubuntu).
You have two options to solve this:
While in your guest OS ...
- 76
6
votes
cannot execute binary file: Exec format error
Mach-O 64-bit x86_64 executable is the binary executable file format used on OS X. If you downloaded this from somewhere, it seems like you downloaded the OS X version rather than the Linux version.
- 2,401
6
votes
Accepted
Permission denied when I try to pair to a Bluetooth speaker on Ubuntu 14.04
I solved this issue, simply by removing the bluetooth device from the bluetooth icon on the menu bar, re-scanning, and adding it.
- 163
6
votes
How can I remove the ^M from my file in sublime text 3?
To whom may not want to install additional plugin to remove ^M new lines,
In sublime text setting, add "trim_trailing_white_space_on_save": true, to auto remove space when saving. (This step might be ...
- 161
6
votes
Accepted
What is the difference between /sys/class/block and /sys/block
The latter exists for compatibility reasons, because sysfs originally had dedicated code for block devices, but later those became just another "class". See commit v2.6.24-158-gedfaa7c36574:
Driver ...
- 454k
5
votes
How to change Mozilla Firefox quit shortcut?
To disable the shortcut without installing extensions:
Type about:config in the address bar
Type browser.showQuitWarning in the search field
Change the value to true
- 1,328
5
votes
Why is apt-get downloads so slow
In my case, I had set a bandwidth limit in /etc/apt/apt.conf.d/50unattended-upgrades:
// Use apt bandwidth limit feature, this example limits the download
// speed to 70kb/sec
Acquire::http::Dl-Limit &...
- 7,433
5
votes
Yellow Triangle on C Drive after Disabling Secure Boot
Run this command from elevated command prompt:
manage-bde -off C:
This will disable Bitlocker protection for your system drive. You can check your status with this command:
manage-bde -status C:
4
votes
Why is apt-get downloads so slow
The apt-fast package can be installed in all currently supported versions of Ubuntu by adding the apt-fast/stable PPA to your software sources and installing it using these commands.
sudo add-apt-...
- 41
4
votes
method by which I can track down a list of flash drives
When USB devices are connected to a Ubuntu Linux system, entries are placed in /var/log/dmesg. You can view those entires with dmesg | grep -i usb, but you won't find the details you are looking for ...
- 5,178
4
votes
WSL(ubuntu/windows) AppData\Local\Lxss doesn't actually sync back to ubuntu, ideas?
New files that are created via Windows Explorer are possibly not appearing in bash because they are missing special LXSS NTFS attributes.
When LXSS creates files in the LXSS root, it attaches ...
- 191
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