August 19, 2018
GNU Wget is a free software package for retrieving files using HTTP, HTTPS and FTP. It is a non-interactive commandline tool that can be called from scripts, cron jobs, terminals, etc. The tool is useful for downloading all images or PDFs from a web page.
The terminal command below demonstrates downloading all jpg and png images from the Ray Wenderlich home page and saving into a folder named “ray”.
# Download all jpg and png images from Ray Wenderlich website # -nd saves all files to current folder without creating subfolders # -r turn on recursive retrieving # -P declare directory to save the files # -A accept files of a certain type wget -nd -r -P ./ray -A jpg,png http://www.raywenderlich.com
The next command will download all PDFs on a web page and place them into a folder named “docs”.
wget -nd -r -P ./docs -A pdf http://www.website.com