Wget command is a Linux command line utility that helps us to download the files from the web. We can download the files from web servers using HTTP, HTTPS and FTP protocols. We can use wget in scripts and cronjobs.
Wget is a non-interactive program so that it will run in the background. One of the good feature of wget command is mirriong using this we can download the complete website from the web.
Let’s have a look at some examples of Wget command
1. How to download a WebPage using wget command?
The basic format to download a file from the web using Wget command.
wget http://example.com/sample.php
2. How to download a file using FTP server ?
Wget uses the anonymous FTP to download the files from the web. It does't require FTP logins to download the files.
wget ftp://ftp.example.com/file.tar.gz
3. How to download a file from untrusted secure URL ?
By using this option "--no-check-certificate", We can ignore checking the validity of the certificate.
wget https://example.com/file.tar.gz –no-check-certificate
4. How to mirror a complete website using wget command ?
-m option stands for turn on mirroring. We can download all the website files using.
wget -m https://example.com/
5. How to download reading URL's from a file ?
Read URLs from a local or external file. If - is specified as file, URLs are read from the standard input.
wget -i filename
6. How to allow wget to overwrite the files?
If we specify the output file using the -o option, it will overwrite any existing file.
wget -q http://www.example.com/filename.txt -O /path/filename.txt
7. How to download the files in background ?
For a huge download, We can put the download in background using Wget option -b as shown below.
wget -b http://www.example.com/samplepage.php
8. How to resume the partially downloaded file?
Wget can be used to resume an interrupted download file using the -c option as below
wget -c http://example.com/samplefile.tar.gz
9. How to limit the download speed while downloading the files?
If we want to limit the speed of Wget we can do it, with the option –limit-rate. The command will look like this as below.
wget –limit-rate=128k http://example.com/sample.png
10. How to check the version of wget?
If we can check the version of Wget command as below
wget –version
Conclusion
Wget has huge number of options. We can find more options from manual page.
$ man wget
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