6 micro-topics in Systems & Tooling, each with the evidence that proves you have it and the written reason behind every link. Before you start, it rests on 1 other domain. Downstream, it holds up 2 domains.
6 topics · depth 0–4 of 16 · 4 internal links · 2 in · 2 out
Load-bearing links first. Each one says what in this domain rests on what outside it, and why.
2 links
Search text with grep rests on Inspect file contents
Filtering text assumes you can already read the file.
Count and compare text rests on Inspect file contents
Counting operates on files you can already open.
In prerequisite order. Each idea names the artifact that closes it, the market demand that put it on the map, and what it stands on.
Depth 0 · language · scaffolded · M01 §1.3
Builds patterns for matching and capture
Patterns are learned fastest against a tool that uses them immediately.
Depth 0 · procedural · unassisted · M01 §1.3
Combines sort and uniq to count and order
Counting is usually the second step after filtering.
Depth 1 · procedural · scaffolded · M01 §1.3
Performs find and replace on a stream
Read and write basic regular expressions
Stream editing is find and replace over a pattern.
Depth 3 · procedural · unassisted · M01 §1.3
Filters lines by pattern, recursively and with regex
Inspect file contents · Filesystem
Filtering text assumes you can already read the file.
Depth 3 · procedural · unassisted · M01 §1.3
Uses wc, diff and comm to quantify differences
Inspect file contents · Filesystem
Counting operates on files you can already open.
Depth 4 · procedural · scaffolded · M01 §1.3
Selects and computes over structured text
Column processing is filtering with structure added.
Everything downstream that names an idea here as a prerequisite, grouped by where it lives.
1 link
Apply regular expressions in Python rests on Read and write basic regular expressions
The pattern language is the same one you met in the shell.
1 link
Compose commands with pipes rests on Search text with grep
Pipelines are only worth building once you have tools to chain.
Retool. Retrain. Relaunch.
375 ideas. 17 weeks. No tuition, ever.
Vets Who Code is a veteran-run 501(c)(3). The accelerator is free, remote, and we don’t take a share of your first paycheck.
Free · Remote · 17 weeks · EIN 86-2122804