Concat downloaded content by wget

Question

I want to get the latest release of certain package. In order to do so I did this:

wget https://chromedriver.storage.googleapis.com/LATEST_RELEASE -O /tmp/chromedriver_release
wget http://chromedriver.storage.googleapis.com/`cat /tmp/chromedriver_release`/chromedriver_linux64.zip -O /tmp/chromedriver_linux64.zip

• There's not a direct link to the latest version (at least none that I could find)
• This instructions are part of a provisioning script, I don't have curl installed and I don't want to install it

I checked wget arguments and I didn't find anything that allows me to redirect the downloaded content to stdout. Will this be my best option?

Answer 1

This is very hard to read like that. The duplication of the same base url is also not great.

With the -O flag, you could specify - to make the output go to stdout.

Lastly, `...` is obsolete syntax, use the modern $(...) instead.

baseurl=https://chromedriver.storage.googleapis.com
filename=chromedriver_linux64.zip

version=$(wget "$baseurl"/LATEST_RELEASE -O-)
wget "$baseurl/$version/$filename" -O "/tmp/$filename"