15-09-2021

Install Wget Mac Catalina

How To Install Wget Mac
Install Wget Mac Catalina Update
Install Wget Mac Catalina

Brew install wget Homebrew is a package manager for OSX analogous to yum, apt-get, choco, emerge, etc. Be aware that you will also need to install Xcode and the Command Line Tools. Virtually anyone who uses the command line in OSX will want to install these things anyway. Follow the prompts to complete the installation. Run the following command to install the essential packages. Brew install bash cliclick coreutils gawk wget dialog unix2dos grep w3m. Run the following commands to install wine and winetricks. First add the tap: brew tap gcenx/wine. Then install Wine: brew install cask -no-quarantine wine. Download macOS Catalina ISO Image -Latest. In this article, I’ve listed the download links for downloading the macOS Catalina ISO image. MacOS Catalina was released in Worldwide Developer Conference (WWDC19). The latest version of this OS is macOS Catalina 10.15.5 (19F101). Apple has released there new OS, macOS Big Sur on WWDC20.

Wget is free command-line tool that you can use to download files from the internet.

On the Mac, CCP4 Software Suite may be conveniently configured, downloaded and automatically installed with Package Manager (recommended). ATTENTION:. Screen Time (macOS Catalina or newer) was found to block installation and updates of CCP4 in a not obvious way.

In this wget tutorial, we will learn how to install and how to use wget.

3Install Wget

4Wget Basics

5Extract Web pages with Wget Commands

7Use Wget With Python

What is Wget and What Does it Do?

WGET is a free tool to crawl websites and download files via the command line.

It lets you download files from the internet via FTP, HTTP or HTTPS (web pages, pdf, xml sitemaps, etc.).
It provides recursive downloads, which means that Wget downloads the requested document, then the documents linked from that document, and then the next, etc.
It follows the links and directory structure.
It lets you overwrite the links with the correct domain, helping you create mirrors of websites.

Install Wget

Check if Wget is installed

Open Terminal and type:

If it is installed, it will return the version.

If not, follow the next steps to download wget on either Mac or Windows.

Download Wget on Mac

The recommended method to install wget on Mac is with Homebrew.

First, install Homebrew.

How To Install Wget Mac

Then, install wget.

Download Wget on Windows

To install and configure wget for Windows:

Download wget for Windows and install the package.
Copy the wget.exe file into your C:WindowsSystem32 folder.
Open the command prompt (cmd.exe) and run wget to see if it is installed.

Here is a quick video showing you how to download wget on windows 10.

Wget Basics

Let’s look at the wget syntax, view the basic commands structure and understand the most important options.

Wget Syntax

Wget has two arguments: [OPTION] and install-wget-mac-catalina.html .

[OPTION] tells what to do with the install-wget-mac-catalina.html argument provided after. It has a short and a long-form (ex: -V and --version are doing the same thing).
install-wget-mac-catalina.html is the file or the directory you wish to download.
You can call many OPTIONS or URLs at once.

View WGET commands

To view available wget commands, use wget -h.

Extract Web pages with Wget Commands

Download a single file

Download a File to a Specific Output Directory

Here replace <YOUR-PATH> by the output directory location where you want to save the file.

Rename Downloaded File

To output the file with a different name:

Define User Agent

Identify yourself. Define your user-agent.

Extract as Google bot

Extract Robots.txt only When it Changes

Let’s extract robots.txt only if the latest version in the server is more recent than the local copy.

First time that you extract use -S to keep a timestamps of the file.

Later, to check if the robots.txt file has changed, and download it if it has.

Convert Links on a Page

Convert the links in the HTML so they still work in your local version. (ex: example.com/path to localhost:8000/path)

Mirror a Single Webpage

To mirror a single web page so that it can work on your local.

Extract Multiple URLs

Add all urls in a urls.txt file.

Limit Speed

To be a good citizen of the web, it is important not to crawl too fast by using --wait and --limit-rate.

--wait=1: Wait 1 second between extractions.
--limit-rate=10K: Limit the download speed (bytes per second)

Extract Entire Site (Proceed with Caution)

Recursive mode extract a page, and follows the links on the pages to extract them as well.

This is extracting your entire site and can put extra load on your server. Be sure that you know what you do or that you involve the devs.

--recursive: Follow links in the document. The maximum depth is 5.
--page-requisites: Get all assets (CSS/JS/images)
--adjust-extension: Save files with .html at the end.
--span-hosts: Include necessary assets from offsite as well.
--wait=1: Wait 1 second between extractions.
--limit-rate=10K: Limit the download speed (bytes per second)
--convert-links: Convert the links in the HTML so they still work in your local version.
--restrict-file-names=windows: Modify filenames to work in Windows.
--no-clobber: Overwrite existing files.
--domains example.com: Do not follow links outside this domain.
--no-parent: Do not ever ascend to the parent directory when retrieving recursively
--level: Specify the depth of crawling. inf is used for infinite.

(Extra) Run Spider Mode

Wget VS Curl

Wget’s strength compared to curl is its ability to download recursively. This means that it will download a document, then follow the links and then download those documents as well.

Use Wget With Python

Wget is strictly command line, but there is a package that you can import the wget package that mimics wget.

Debug Wget Command Not Found

If you get the -bash: wget: command not found error on Mac, Linux or Windows, it means that the wget GNU is either not installed or does not work properly.

Go back and make sure that you installed wget properly.

Conclusion

This is it.

You now know how to install and use Wget in your command-line.

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Question or issue on macOS:

I try to install wget in MAC OS 10.11.1 but when I run ./configure –with-ssl=openssl I get this error:

How to resolve this problem in OSX 10.11.1?

How to solve this problem?

Solution no. 1:

Using brew

First install brew:

And then install wget with brew and also enable openressl for TLS support

Using MacPorts

First, download and run MacPorts installer (.pkg)

And then install wget:

Solution no. 2:

For macOS Sierra, to build wget 1.18 from source with Xcode 8.2.

Install Xcode
Build OpenSSL
Since Xcode doesn’t come with OpenSSL lib, you need build by yourself. I found this: https://github.com/sqlcipher/openssl-xcode, follow instruction and build OpenSSL lib. Then, prepare your OpenSSL directory with “include” and “lib/libcrypto.a”, “lib/libssl.a” in it.
Let’s say it is: “/Users/xxx/openssl-xcode/openssl”, so there should be “/Users/xxx/openssl-xcode/openssl/include” for OpenSSL include and “/Users/xxx/openssl-xcode/openssl/lib” for “libcrypto.a” and “libssl.a”.
Build wget
Go to wget directory, configure:
wget should configure and found OpenSSL, then make:
wget made out. Install wget:
Or just copy wget to where you want.
Configure cert
You may find wget cannot verify any https connection, because there is no CA certs for the OpenSSL you built. You need to run:
New way:
If you machine doesn’t have “/usr/local/ssl/” dir, first make it.
Old way:
Then put cert.pem to: “/usr/local/ssl/cert.pem”
DONE: It should be all right now.

Solution no. 3: