{"id":14190,"date":"2022-01-21T11:55:29","date_gmt":"2022-01-21T11:55:29","guid":{"rendered":"https:\/\/linuxways.net\/?p=14190"},"modified":"2022-01-21T11:55:29","modified_gmt":"2022-01-21T11:55:29","slug":"linux-wget-command-with-examples","status":"publish","type":"post","link":"https:\/\/linuxways.net\/de\/centos\/linux-wget-command-with-examples\/","title":{"rendered":"Linux wget Command with Examples"},"content":{"rendered":"

GNU Wget is a free tool that allows you to download files from the internet using the command-line. Wget has a lot of features, including the ability to download multiple files, limit bandwidth, resume downloads, ignore SSL checks, download in the background, mirror a website, and more.<\/p>\n

This article demonstrates the different options available using the wget command.<\/p>\n

Wget Syntax<\/strong><\/h2>\n

Wget takes the following simple syntax.<\/p>\n

$ wget [options] [url]<\/strong><\/pre>\n
1. Download a file<\/strong><\/h2>\n
With no command options, you can download a file with the wget command by specifying the URL of the resource as shown.<\/p>\n
$ wget https:\/\/github.com\/git\/git\/archive\/refs\/tags\/v2.34.1.zip<\/strong><\/pre>\n
<\/p>\n
2. Download Multiple files<\/strong><\/h2>\n
When it comes to downloading multiple files, you need to create a text file and list the URLs of the resources to be downloads. The text file will act as an input file from which wget will read the URLs<\/p>\n
In this example, we have saved a few URLs in the multipledownloads.txt<\/strong> text file<\/p>\n
<\/p>\n
Next, download the files using wget with -i<\/strong>option as shown. With the-i <\/strong>option, wget reads from the input file and downloads the resources defined in the input file.<\/p>\n
$ wget -i multipledownloads.txt<\/strong><\/pre>\n
<\/p>\n
3. Download files in the background<\/strong><\/h2>\n
To download files in the background, use the wget command with -b option. This option comes in handy when the file is large and you need to utilize the terminal for something else.<\/p>\n
$ wget -b <\/strong>https:\/\/github.com\/git\/git\/archive\/refs\/tags\/v2.34.1.zip<\/strong><\/a><\/pre>\n
<\/p>\n
To view the output of the download, view wget logs with the command:<\/p>\n
$ tail -f wget-log<\/strong><\/pre>\n
<\/p>\n
4. Resume a download<\/strong><\/h2>\n
In some cases, when we start a download the internet becomes unavailable. We can use the wget command’-c’ to resume our download from the point when it became unavailable. The following is an example.<\/p>\n
$ wget -c https:\/\/download.rockylinux.org\/pub\/rocky\/8\/isos\/x86_64\/Rocky-8.4-x86_64-minimal.iso<\/strong><\/pre>\n
5. Saving downloaded file under a different name.<\/strong><\/h2>\n
Use the wget command with the -o option followed with the desired name of the file as follows:<\/p>\n
$ wget -o git.zip <\/strong>https:\/\/github.com\/git\/git\/archive\/refs\/tags\/v2.34.1.zip<\/strong><\/a><\/pre>\n
The file is saved as git.zip in the example above.<\/p>\n
6. Download file under a specific directory<\/strong><\/h2>\n
The wget commands save downloads in the current working directory. To specify a location use the -P option followed with path to directory.<\/p>\n
$ sudo wget -P \/opt\/wordpress https:\/\/wordpress.org\/latest.tar.gz<\/strong><\/pre>\n
<\/p>\n
7. Set the download speed<\/strong><\/h2>\n
By default, the wget command attempts to use all available bandwidth. However, if you are using a shared internet connection, or trying to download a large file you can use the ‘ –limit-rate<\/strong>‘ option to cap the download speed to a specific value. You can set the speed in kilobytes ( k) , Megabytes ( m ) or Gigabytes ( g ).<\/p>\n
In this example. We have set the download speed to 100Kilobytes.<\/p>\n
$ wget --limit-rate=100k http:\/\/download.virtualbox.org\/virtualbox\/rpm\/rhel\/virtualbox.repo<\/strong><\/pre>\n
<\/p>\n
8. Mirror entire website<\/strong><\/h2>\n
Use the -m option with wget to create a mirror of a website. This creates a local copy of the website on your system for local browsing.<\/p>\n
$ wget -m https:\/\/google.com<\/strong><\/pre>\n
You’ll need to provide a few extra parameters to the command above if you wish to browse the downloaded page locally.<\/p>\n
$ wget -m -k -p https:\/\/google.com<\/strong><\/pre>\n
The -k option instructs wget to transform links in downloaded documents so that they can be viewed locally. The -p options provides all the<\/p>\n
essential files for displaying the HTML page.<\/p>\n
9. Ignore SSL Checks<\/strong><\/h2>\n
Use the \u2014no-check-certificate<\/strong> option to download a file over HTTPS from a server with an incorrect SSL certificate.<\/p>\n
$ wget --no-check-certificate https:\/\/website-with-invalid-ss.com<\/strong><\/pre>\n
10. Increase number of retries<\/strong><\/h2>\n
Incase of a network interruption, wget command attempt to re-establish the connection. By default, it tries 20 times to successfully complete the download. The ‘–tries<\/strong>‘ option increases the number of retry attempts.<\/p>\n
Here, we have set the number of retries to 75 attempts.<\/p>\n
$ wget --tries=75 https:\/\/download.rockylinux.org\/pub\/rocky\/8\/isos\/x86_64\/Rocky-8.4-x86_64-minimal.iso<\/strong><\/pre>\n
Conclusion<\/strong><\/h2>\n
Wget is a very useful tool for downloading files. For further information, check out the documentation.<\/a><\/p>","protected":false},"excerpt":{"rendered":"
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