Posts tagged: bash

Recently I automated starting new posts with a python script. Today I want to work on the next part that is editing those posts quickly.

Automating my Post Starter

Check out this post about setting up my posts with python 🐍

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I do much of my work from tmux, I love it so much that I want to setup some functionality that puts me in tmux even if I didn’t ask for it.

Bash function to check if the shell is in a tmux session.

in_tmux () { if [ -n "$TMUX" ]; then return 0 else return 1 fi }

Using the bash function ¶ #

I often open up vim to do some quite edits, but before I know it I have several splits open and I need access to another shell utility, but I forgot to start in tmux. This function makes sure tht I start in tmux everytime.

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Web browsers are a black hole of productivity. I try to use them as little as possible when it is time to focus. I try to use help, ?, or ?? with ipython, or –help at the command line as much as possible. What about that time I am trying to see what my online friends are posting on their sites? I used to used google reader quite heavily before that was taken down.

I am going to give a terminal rss reader a try for a bit and see how that goes for me. I have really struggled to get into an rss reader since google reader died.

I installed with the reccomended snap for Ubuntu.

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Stop going to google everytime your stuck and stay in your workflow. The ipython ? is a superhero for productivity and staying on task.

from kedro.pipeline import Pipeline Pipeline? Init signature: Pipeline( nodes: Iterable[Union[kedro.pipeline.node.Node, ForwardRef('Pipeline')]], *, tags: Union[str, Iterable[str]] = None, ) Docstring: A ``Pipeline`` defined as a collection of ``Node`` objects. This class treats nodes as part of a graph representation and provides inputs, outputs and execution order. Init docstring: Initialise ``Pipeline`` with a list of ``Node`` instances. Args: nodes: The iterable of nodes the ``Pipeline`` will be made of. If you provide pipelines among the list of nodes, those pipelines will be expanded and all their nodes will become part of this new pipeline. tags: Optional set of tags to be applied to all the pipeline nodes. Raises: ValueError: When an empty list of nodes is provided, or when not all nodes have unique names. CircularDependencyError: When visiting all the nodes is not possible due to the existence of a circular dependency. :

Note This does jump you into a pager, a j,k or up, down to navigate, q to quit.

Docstring not enough for you use case. I often run into cases where the docstring is not clear enough and I need to see the implementation for myself to see what a function does.

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Bash is a language that is quite useful for automation no matter what language you write in. Bash can do so many powerful system-level tasks. Even if you are on windows these days you are likely to come across bash inside a cloud VM, Continuous Integration, or even inside of docker.

I have three techniques that help me write more composable bash scripts.

Break scripts down into reusable components

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miniconda is a python distribution from continuum. It’s a slimmed-down version of their very popular anaconda distribution. It comes with its own environment manager and has eased the install process for many that do not have a way to compile c-extensions. It made it much easier to install the data science stack on windows a few years ago. These days windows are much better than it was back then at compiling c-extensions. I still like its environment manager, which installs to a global directory rather than a local directory for your project.

Installing miniconda on Linux can be a bit tricky the first time you do it completely from the terminal. The following snippet will create a directory to install miniconda into, download the latest python 3 based install script for Linux 64 bit, run the install script, delete the install script, then add a conda initialize to your bash or zsh shell. After doing this you can restart your shell and conda will be ready to go.

mkdir -p ~/miniconda3 wget https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh -O ~/miniconda3/miniconda.sh bash ~/miniconda3/miniconda.sh -b -u -p ~/miniconda3 rm -rf ~/miniconda3/miniconda.sh ~/miniconda3/bin/conda init bash ~/miniconda3/bin/conda init zsh

Options ¶ #

The miniconda.sh script comes with a few basic options. Most notably we used -b to be able...

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I have been using oh-my-zsh successfully for about 2 years now. But lately my startup time has been really bothersome. It has grown to the point where it was taking about 5.5s to startup a shell! This is ok if I am going to spend some time in here for awhile and do some work that benefits from all of the autocompletions, plugins, and shortcuts that oh-my-zsh brings. But to only jump in to run a handful of commands is infuriating.

I believe the real issue is io speed on wsl. I have some remote servers with similar configs that are 10x faster or more, loading in 100s of milliseconds rather than seconds. Sourcing all of the individual plugin files are just too much for it.

Quick side note: your zsh config is controled by your ~/.zshrc file. This file can source other files, load plugins, or run literally anything.

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Bash is super powerful.

Show Remaining Space on Drives

df -h

show largest files in current directory

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