prep

Author: i786m

implement-shell-tools/prep/package.json

@@ -0,0 +1,15 @@
+{
+  "name": "prep",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "commander": "^14.0.3"
+  }
+}

implement-shell-tools/prep/prep.mjs

@@ -0,0 +1,28 @@
+import { program } from 'commander';
+import process from 'node:process';
+import { promises as fs } from 'node:fs';
+
+program
+    .name('prep')
+    .description('Counts the number of words in a file that contain the letter "e".')
+    .option('-c, --char <char>', 'The character to search for in words', 'e')
+    .argument('<path>', 'The path to the file to analyze')
+
+program.parse();    
+
+const argv = program.args;
+
+if (argv.length != 1) {
+	console.error(
+		`Expected exactly 1 argument (a path) to be passed but got ${argv.length}.`,
+	);
+	process.exit(1);
+}
+const path = argv[0];
+const char = program.opts().char;
+
+const content = await fs.readFile(path, 'utf-8');
+const countOfWordsContainingChar = content
+	.split(' ')
+	.filter((word) => word.includes(char)).length;
+console.log(countOfWordsContainingChar);

implement-shell-tools/prep/test.txt

@@ -0,0 +1 @@
+this is a test. there should be 4 in the output