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Ezeken az oldalakon ingyen letölthető elektronikus könyvek találhatók
Ingyenes, legálisan letölthető elektronikus könyvek
Az Amazon Kindle Paperwhite a következő formátumokat támogatja:
A fileokat a következő módszerekkel küldhetjük a Kindle-re
Az Amazon Kindle Paperwhite konfigurálását és a küldő email cím engedélyezését az Amazon Kindle Paperwhite konfigurálása Libri elektronikus könyv olvasásához oldalon találjátok.
A Libri internetes oldalán MOBI és EPUB formátumban vásárolhatunk könyveket.
Több módon küldhetjük a könyveket :
Ha a formátum nem megfelelő, kapunk egy angol nyelvű email-t az Amazontól “There was a problem with the document(s) you sent to Kindle” tárggyal.
A levél tartalma információt ad a hibával kapcsolatban. azw3 típusú könyveket email-ben nem tudunk küldeni a Kindle-re.
Dear Customer,
The following document(s), sent at 09:21 PM on Thu, Dec 02, 2021 GMT could not be delivered to the Kindle you specified:
Az igazi humoristak_ Cikkek a magyar nep humorarol – Kalman Mikszath.azw3
A legegyszerűbb, ha a könyveket email-ben küldjük as Amazon Kindle Paperwhite-re. Így nem kell hozzákapcsolnunk a Kindle-t a számítógépünkhöz.
Töltsük le és telepítsük a Calibre könyvtár kezelő és konvertáló programot a https://calibre-ebook.com/download címről.
A teleítés során a program felkínálja, hogy készítsünk egy Hotmail email címet. Ezt a Calibre fogja használni, hogy a könyveket email csatolmányként elküldje a Kindle címére.
Erre a formátumra fogja Calibre konvertálni a letöltött könyveket.
Biztonsági okokból az Amazon Kindle Paperwhite csak azokról az email címekről fogad el könyvet, amelyeket engedélyezünk az amazon.com oldalán.
LG uses a piston-type compressor in its new refrigerators. The company offers 10-year warranty on the new design, but the new compressor generates a very strong 60 Hz vibration. You can hear it as a low-frequency hum and shakes the entire house.
The guitar tuner app detects it in the living room far away from the kitchen as a strong and steady 60 Hz sound between B and B flat.
We love the features of the new refrigerator, but the vibration really bothered us. We could not reduce the noise in the kitchen, but we were able to significantly reduce the transfer of the vibration to the floor that shook the house.
We have purchased a few items at Home Depot and placed the refrigerator on a soft padded surface. You need:
Build four towers with one Furniture Cup and two Felt Sliders for each, using the adhesive on the sliders to hold them together.
Empty the refrigerator and place the towers under the rollers.
The refrigerator rollers sit perfectly in the dents of the Furniture Cups, and the sliders adequately dampen the low-frequency vibration. The white felt at the bottom allows you to slide the refrigerator on the hard surface, but keeps it in place when you open and close the doors.
If two Felt Sliders don’t provide enough dampening, you can add a third one to provide better insulation.
During Chef cookbook testing with Test Kitchen only one “converge” action can update the Policyfile.lock.json at a time.
If you test multiple recipes in the same cookbook, wait for the “Updating policy lock using /usr/local/bin/chef-cli update” message before starting the next converge otherwise we get the error message:
STDOUT: Installing cookbooks from lock
STDERR: Error: Failed to install cookbooks from lockfile
Reason: (NoMethodError) undefined method `[]’ for nil:NilClass
When we move an EC2 instance from one subnet to another or to another availability zone the EC2 Metadata Service stops working on the instance. We get the error message:
Unable to get IAM security credentials from EC2 Instance Metadata Service.
To enable the EC2 Metadata Service again, we need to update the routing configuration on the instance. Follow the steps at
https://aws.amazon.com/premiumsupport/knowledge-center/waiting-for-metadata/
Check the Gateway Address matches the IP address range of the subnet. In a PowerShell window execute:
route print
Persistent Routes:
Network Address Netmask Gateway Address Metric
169.254.169.254 255.255.255.255 10.254.79.1 15It should belong to the IPv4 CIDR of the subnet
If the Gateway Address does not belong to the IP address range of the subnet
Import-Module c:\ProgramData\Amazon\EC2-Windows\Launch\Module\Ec2Launch.psm1 ; Add-RoutesWhen you change the instance type of an AWS RDS instance, the availability zone of the instance has to have available capacity of the selected type.
Some older availability zones (us-east-1a) have more old instance types than new types available. If the instance type you selected is not available in the current zone of the instance you get the error message:
We’re sorry, your request to modify DB instance … has failed.
Cannot modify the instance class because there are no instances of the requested class available in the current instance’s availability zone. Please try your request again at a later time.
To upgrade an RDS instance to a new type that is not available in the current availability zone:
To terminate the script in case of an error, we can use the “-e” option.
#!/bin/bash
set -e
or
#!/bin/bash -eWhen a bash script is
my-alias='. /my-script to execute in the same process, orand the script exits on an error, it closes the terminal window.
To keep the terminal open, execute the script in a subprocess. It is easy to update existing scripts. Enclose the main part of the script in parentheses to open a new subprocess and add the “set -e” option to it. In case of an error the script terminates the subprocess and returns to the terminal session.
#!/bin/bash
my_function() {
...
}
(
set -e
...
my entry point to the script
...
)When the CI/CD pipeline loads dependency cookbooks from GitHub and the kitchen converge process throws the error:
Error: Failed to install cookbooks from lockfile
Reason: (CookbookOmnifetch::NotACookbook) The resource at ‘/…’ does not appear to be a valid cookbook. Does it have a metadata.rb?
make sure the remote revisions of the dependency cookbook match in the caller and the dependency cookbook’s Policy Lock files and both files are pushed to GitHub.
"scm_info": {
"scm": "git",
"remote": "https://github.com/.../....git",
"revision": "22592d58489abb53316638ce9edfe5ee3742c5cc",The MacOS comes with an old version of Python 2. For new software development Python 3 is the recommended version. Replacing the original Python 2 with Python 3 can cause instability in the MacOS. There are multiple ways to install Python 3 and keep Python 2 pn the Mac. This is the most recommended process:
Pyenv is a Python version manager. It is recommended, because it does not depend on Python, (written in Bash) and using it we can install and utilize multiple Python versions without affecting the Python version used by MacOS.
Open a new terminal window fo these configuration changes to take effect
python --versionAnaconda (conda) can create a python bubble for you with no preinstalled packages. You can create a Python virtual environment for each of your projects to isolate them and only install the required packages.
If you use Pyenv to install multiple Python versions side-by-side and installed Anaconda to create virtual environments for each of your projects, install pyenv-virtualenv to integrate them.
During the installation I have encountered the following error messages
Error: The following directories are not writable by your user:
/usr/local/bin
You should change the ownership of these directories to your user.
sudo chown -R $(whoami) /usr/local/bin
To set you as the owner of the /usr/local/bin directory execute
sudo chown -R $(whoami) /usr/local/bin
Error:
homebrew-core is a shallow clone.
Tobrew update, first run:
git -C /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core fetch –unshallow
To update the shallow clone of the repository from GitHub execute
git -C /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core fetch --unshallow
Error: The following formula cannot be installed from bottle and must be
built from source.
python@2
Install the Command Line Tools:
xcode-select –install
To install the xcode command line developer tools execute
xcode-select --install