- Wget for Mac/Linux. Make sure you have setup your Earthdata account. Launch with the following command line: java -Xmx1g -jar toolsUI-4.6.4.jar '-Xmxsize' specifies the maximum size in bytes of the memory allocation pool. Create a.netrc file in your home directory and a.urscookie file as described in above curl and wget download.
- Everything (NOT Java EE6 Certified) 2011-09-22: LGPL: No support, archived release! ZIP (75MB) Release Notes: Everything (NOT Java EE6 Certified) 2011-09-22: LGPL: No support, archived release! TAR.GZ (75MB) Release Notes: Quickstarts: 2012-01-06: ASL: No support, archived release! Download (7.6MB) Release Notes: JBoss AS 7.0.1.Final: Web.
Java must be installed separately. Upgrade – don’t be afraid to remove previous DBeaver version – your settings won’t be lost. All settings are kept in the separate folder (DBeaverData in user home) Java notes: if you use Windows or MacOS installer then you don’t need to install Java. Otherwise you will need to setup Java separately.
This guide will show you how to use the wget command in Linux. We’ll also provide 12 useful wget command examples. By the end, you’ll know all about the wget command and will be able to use it to download files from the World Wide Web.
What is the Wget Command?
Wget is a computer tool created by the GNU Project. You can use it to retrieve content and files from various web servers. The name is a combination of World Wide Web and the word get. It supports downloads via FTP, SFTP, HTTP, and HTTPS.
Wget is created in portable C and usable on any Unix system. It’s also possible to implement on Mac OS X, Microsoft Windows, AmigaOS, and other popular platforms.
How to Install Wget?
For this wget command demonstration, we’ll be using Ubuntu 16.04. But the syntax will work on any other Linux distribution too.
Firstly, access your server via SSH:
To install wget on Ubuntu 18.04 or similar, execute the following command:
To install wget on CentOS 7 or it’s previous distros, use:
Once the setup finishes, you’ll be ready to use it. Also, the knowledge of basic SSH commands can make things easier.
Wget Command Examples
To get you started, we’ll provide 12 wget command examples that you can use for everyday tasks. Keep in mind that you may also call this function from scripts and cron jobs!
Using Wget Command to Download Single Files
One of the most basic wget command examples is downloading a single file and storing it on your current working directory. For example, you may get the latest version of WordPress by using the following:
Here is the output that you will see:
In this example, a file named latest.zip will be downloaded in the current working directory. You’ll also see extra information, such the download progress, speed, size, time, and date.
Using Wget Command to Download Multiple Files
We can take wget usage one step further and download multiple files at once. To do that, we will need to create a text document and place the download URLs there. In this example, we will retrieve the latest versions of WordPress, Joomla, and Drupal by using wget. Enter the following:
This will create an example.txt file and open a text editor interface. Paste these links there:
Once done, you may use -i to get all the files stored in your example text file:
Wait for the process to finish and you’ll have the installations of three most popular content management systems.
Using Wget Command to Get Files Under Different Names
In this wget example, we will save a file using a different name with the help of -O option:
In this case, the downloaded resource will be saved as wordpress-install.zip instead of it’s original name.
Using Wget Command to Save Files in Specified Directory
You can utilize wget to place a file in another directory using -P function:
The file you retrieve using this syntax will appear in documents/archives/ folder.
Using Wget Command to Limit Download Speed
With wget, you can also limit the download speed. This is useful when retrieving huge files and will prevent it from using all of your bandwidth. This wget example will set the limit to 500k:
Using Wget Command to Set Retry Attempts
Internet connection problems can cause your download to interrupt. To tackle this issue, we can increase the retry attempts using -tries function:
Mac Wget Command
Using Wget Command to Download in Background
For extremely large files, you may take advantage of -b function. It will download your content in the background.
A wget-log will appear in your working directory, which can be used to check your download progress and status. This command will also do the trick:
Using Wget Command to Download via FTP
The command is also usable with FTP. You’ll only need to specify the username and password as in this wget example:
Using Wget Command to Continue Interrupted Downloads
Your download can get interrupted if you lose the internet connection or experience a power outage. This is quite a common occurrence when getting huge files. Instead of starting over, it’s possible to continue the download using -c function:
If you proceed without the -c function, the new file will have .1 added at the end as it already exists.
Using Wget Command to Retrieve Whole Websites
It is also possible to use wget command to download the content of an entire site. This will let you view it locally without an internet connection. Here is an example:
Let’s analyze the ingredients of this wget command:
|–mirror||It makes your download recursive.|
|–convert-links||All links will be converted for proper offline usage.|
|–page-requisites||The following will include all necessary files such as CSS, JS, and images.|
|–no-parent||It ensures that directories above the hierarchy are not retrieved.|
|-P documents/websites/||This ensures that all content goes to our specified directory.|
Once the process finishes, you’ll be able to open the downloaded website locally and find all the files in documents/websites/ folder.
Wget Mac Install
Using Wget Command to Locate Broken Links
Let’s try something more advanced. We can use the wget command to locate all broken URLs that display 404 error on a specific website. Start by executing the following:
|-o||Gathers output into a file for later use.|
|-l||Specifies the recursion level.|
|-r||Makes the download recursive.|
|–spider||Sets wget to spider mode.|
We may now investigate the wget-log file to find the list of broken links. Here’s the command to do it:
Using Wget Command to Download Numbered Files
If you have files or images numbered in a certain list, you may easily download all of them with the following syntax:
Congratulations! By completing this tutorial you have learned various uses for the wget command. You can now utilize it to get single or multiple files. In addition, you’ve learned some advanced uses, such as downloading a whole website or locating broken URLs. For more information, you may also check the official documentation.
Are there any hidden tips or tricks that you want to share? Feel free to do so in the comments below!
This page describes how to install and uninstall JDK 8 for OS X computers.
This page has these topics:
See 'JDK 8 and JRE 8 Installation Start Here' for general information about installing JDK 8 and JRE 8.
See 'OS X Platform Install FAQ' for general information about installing JDK 8 on OS X.
Wget Download Jdk
Observe the following requirements:
Any Intel-based computer running OS X 10.8 (Mountain Lion) or later.
Note that installing the JDK on OS X is performed on a system wide basis, for all users, and administrator privileges are required. You cannot install Java for a single user.
Installing the JDK also installs the JRE. The one exception is that the system will not replace the current JRE with a lower version. To install a lower version of the JRE, first uninstall the current version as described in 'Uninstalling the JRE'.
JDK Installation Instructions
When you install the Java Development Kit (JDK), the associated Java Runtime Environment (JRE) is installed at the same time. The JavaFX SDK and Runtime are also installed and integrated into the standard JDK directory structure.
Download Java Wget
Depending on your processor, the downloaded file has one of the following names:
version is 6 or later.
Download the file.
Before the file can be downloaded, you must accept the license agreement.
From either the Downloads window of the browser, or from the file browser, double click the
.dmgfile to launch it.
A Finder window appears containing an icon of an open box and the name of the
Double click the package icon to launch the Install app.
The Install app displays the Introduction window.
Note:In some cases, a Destination Select window appears. This is a bug, as there is only one option available. If you see this window, select Install for all users of this computer to enable the Continue button.
The Installation Type window appears.
A window appears that says 'Installer is trying to install new software. Type your password to allow this.'
Enter the Administrator login and password and click Install Software.
The software is installed and a confirmation window appears.
http://www.oracle.com/technetwork/java/javase/downloads/jdk-for-mac-readme-1564562.htmlfor more information about the installation.
After the software is installed, delete the
.dmgfile if you want to save disk space.
Determining the Default Version of the JDK
If you have not yet installed Apple's Java OS X 2012-006 update, then you are still using a version of Apple Java 6 that includes the plug-in and the Java Preferences app. See 'Note for Users of OS X that Include Apple Java 6 Plug-in'.
There can be multiple JDKs installed on a system, as many as you wish.
When launching a Java application through the command line, the system uses the default JDK. It is possible for the version of the JRE to be different than the version of the JDK.
You can determine which version of the JDK is the default by typing
java -version in a Terminal window. If the installed version is 8u6, you will see a string that includes the text 1.8.0_06. For example:
Wget Download Site
To run a different version of Java, either specify the full path, or use the
For more information, see the java_home(1) man page.
Uninstalling the JDK
To uninstall the JDK, you must have Administrator privileges and execute the remove command either as root or by using the sudo(8) tool.
For example, to uninstall 8u6:
Do not attempt to uninstall Java by removing the Java tools from
/usr/bin. This directory is part of the system software and any changes will be reset by Apple the next time you perform an update of the OS.