You can download all the pdf files under docs folder:
wget -r -l1 --no-parent -A.pdf http://somehost.com/docs/
Step 1
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Go to linux shell
Step 2
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Have the following command and hit enter
wget -r -l1 --no-parent -A.pdf http://somehost.com/docs/
It will download all the pdf files in the specified host.
Enjoy... :)
