Linux

This post is a reply to https://tilde.town/~kzimmermann/articles/installing_alpine_manpages.html. The author describes their experience while attempting to install all man pages for all the packages in use in their system. The breakdown progression has some valuable insights on how a typical Unix sysadmin addresses a problem. I tend to adopt a similar approach when entering unknown territory. However, in Alpine Linux, there is a better way. ...

Given, for example, 0 0 * * *, how do you figure out when it will run? ...

If you find yourself in a situation wherein http://localhost:1313 has issues, you can use a domain that redirects to localhost. For example: http://localdev.me:1313/ http://demo.localdev.me:1313/ ...

Let’s say the files you want to copy are in ~/Downloads. ...

Whenever the files are in the same directory, vidir from moreutils is the best interactive tool. If files are scattered across multiple directories, consider using the rename utility from util-linux. ...

The following commands will make the shell sleep indefinitely: ...

Given the password correct horse battery staple, we would like to bcrypt-hash it. XKCD Courtesy of Randall Munroe ...

Assume that you have a Chartmuseum container running in AWS Fargate. Chartmuseum is a repository for helm charts. AWS Fargate is an Amazon service to run containers (“serverless”), being part of ECS (Elastic Container Service). Problem statement: Add a container healthcheck to the chartmuseum task definition associated with the container. ...

If you have a GitHub account configured with SSH, your public keys are available at https://github.com/$USERNAME.keys. For example, mine: https://github.com/thiagowfx.keys And then let’s say you also use your full name on GitHub. ...

I learned a neat shell trick this week. In both bash and zsh you can use the circumflex / caret (^) symbol to find & replace a word from the previous command. Usage: ^prev^next. It’s best illustrated with examples: ...