Created
April 22, 2024 07:57
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const fs = require('fs'); | |
// Function to read file and extract lines starting with given prefixes | |
function extractLinesWithPrefixes(filePath, prefixes) { | |
// Read the file | |
fs.readFile(filePath, 'utf8', (err, data) => { | |
if (err) { | |
console.error('Error reading file:', err); | |
return; | |
} | |
// Split the file content into lines | |
const lines = data.split('\n'); | |
// Filter lines that start with any of the specified prefixes | |
const filteredLines = lines.filter(line => { | |
return prefixes.some(prefix => line.trim().startsWith(prefix)); | |
}); | |
// Print the filtered lines | |
console.log(`Lines starting with the specified prefixes:`); | |
filteredLines.forEach(line => console.log(line)); | |
}); | |
} | |
// Example usage: Replace 'example.txt' with the path to your file | |
const filePath = 'example.txt'; | |
const prefixes = ['> nx run', '> npm run']; // Change this to the prefixes you want to filter by | |
extractLinesWithPrefixes(filePath, prefixes); |
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