Run Cacher snippet contents through bash commands

Rui Jiang
Rui Jiang
Jul 9, 2018 · 2 min read

A question that often comes up is whether you can run snippet file contents in a shell (like bash or zsh). The answer is yes and here is how.

TLDR: Check out the snippet.

For example, suppose that you have a set of commands you need to run on the machine of every new engineer. These commands install Homebrew and wget. You could write a snippet with the following as the file’s content:

echo "Running setup commands ..."echo "Installing Homebrew ..."
/usr/bin/ruby -e "$(curl -fsSL"
echo "Installing wget ..."
brew install wget

Save it as either a private or public snippet.

If you saved a private snippet, click on Share for the file, then toggle on the Public URL for the file:

Image for post
Image for post
Turn on the public URL for the snippet file

Otherwise, if the snippet is public, click on the View Raw link in the file’s header to open a browser tab to the URL.

Then, simply curl the file contents into bash to run the commands:

\curl -sSL | bash

Obviously, you’re not limited to to executing shell commands. You could use any HTTP client written in any language to retrieve snippet file contents. You could say, write a RSS feed that gets consumed by Feedparser… or write a portable config file that gets used by CI builds.

Do you have any cool uses for Cacher snippets? Let us know in the comments.

Want to remember this technique? Save the snippet for this blog post to your Cacher library.

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