Add shutdown TIL

README.md

@@ -10,7 +10,7 @@ others" and "this is something really annoying that took forever to find out and
 I know I'll come across it again at some point so I want it committed for
 posterity".
 
-35 TILs and growing!
+36 TILs and growing!
 
 ---
 
@@ -65,6 +65,7 @@ posterity".
 - [List directories only](linux/list-directories-only.md)
 - [`mv` Tips and Tricks](linux/mv-tips-and-tricks.md)
 - [Oh My Zsh Aliases](linux/oh-my-zsh-aliases.md)
+- [`shutdown` aliases](linux/shutdown-aliases.md)
 - [String manipulation](linux/string-manipulation.md)
 - [U2F](linux/u2f.md)
 - [`which`](linux/which.md)

createTIL.js

@@ -27,7 +27,13 @@ const sortLowerCase = (a, b) => (topicToFileName(a) < (topicToFileName(b)) ? -1
 
 const structure = JSON.parse(fs.readFileSync('structure.json', 'utf8'));
 structure[newCategory] = (structure[newCategory] || []).concat([newTopic]).sort(sortLowerCase);
-fs.writeFileSync('structure.json', JSON.stringify(structure, null, 2), 'utf8');
+const output = Object.keys(structure)
+  .sort((a, b) => catToDir(a) < catToDir(b) ? -1 : 1)
+  .reduce((acc, cat) => {
+    acc[cat] = structure[cat];
+    return acc;
+  }, {});
+fs.writeFileSync('structure.json', JSON.stringify(output, null, 2), 'utf8');
 
 const tilCount = Object.values(structure).reduce((acc, tils) => acc + tils.length, 0);
 
@@ -53,7 +59,7 @@ ${tilCount} TILs and growing!
 `);
 
 const categories = ['', '---', ''];
-Object.keys(structure).sort(sortLowerCase).forEach((category) => {
+Object.keys(output).forEach((category) => {
   readme.write(`- [${category}](#${category.replace(/ /g, '-')})\n`);
   categories.push(
     `### ${category}`,

linux/shutdown-aliases.md

@@ -0,0 +1,7 @@
+# `shutdown` aliases
+
+`shutdown` can be used with `-H` to halt, `-r` to reboot, or `-h` to power off a
+machine. There are simple aliases for these flags: `halt`, `reboot` and
+`poweroff` respectively.
+
+See `man shutdown` for more info.

structure.json

@@ -2,60 +2,61 @@
   "C++": [
     "Scoped enums"
   ],
+  "Elixir": [
+    "Base encoding methods",
+    "Get last value in IEx",
+    "Releases",
+    "Test coverage",
+    "Test setup",
+    "Turn on history in IEx"
+  ],
+  "git": [
+    "Find file creation date",
+    "Push commit with tags",
+    "Set commit message editor"
+  ],
   "JavaScript": [
     "File system flags in Node",
     "Readline interface",
     "Readline interface 2",
     "Regular expression flags"
   ],
-  "vim": [
-    "Ruler"
-  ],
-  "WebAssembly": [
-    "Break statements",
-    "Global variables",
-    "Memory management",
-    "Tables"
-  ],
-  "Rails": [
-    "Active record attributes",
-    "`select` vs `pluck`"
-  ],
-  "PostgreSQL": [
-    "Filter clause"
-  ],
-  "VS Code": [
-    "External terminal"
-  ],
-  "Ruby": [
-    "`squeeze`"
-  ],
   "Linux": [
     "Finding size of folder",
     "Force quit hung ssh",
     "Killing other ssh connections",
     "List directories only",
     "`mv` Tips and Tricks",
     "Oh My Zsh Aliases",
+    "`shutdown` aliases",
     "String manipulation",
     "U2F",
     "`which`",
     "Yubico Authenticator on Fedora"
   ],
-  "git": [
-    "Find file creation date",
-    "Push commit with tags",
-    "Set commit message editor"
-  ],
   "nginx": [
     "Redirect requests to new domain"
   ],
-  "Elixir": [
-    "Base encoding methods",
-    "Get last value in IEx",
-    "Releases",
-    "Test coverage",
-    "Test setup",
-    "Turn on history in IEx"
+  "PostgreSQL": [
+    "Filter clause"
+  ],
+  "Rails": [
+    "Active record attributes",
+    "`select` vs `pluck`"
+  ],
+  "Ruby": [
+    "`squeeze`"
+  ],
+  "vim": [
+    "Ruler"
+  ],
+  "VS Code": [
+    "External terminal"
+  ],
+  "WebAssembly": [
+    "Break statements",
+    "Global variables",
+    "Memory management",
+    "Tables"
   ]
 }