1var fs = require('fs');
2var text = fs.readFileSync("./mytext.txt", 'utf-8');
3var textByLine = text.split('\n')

1const fs = require('fs')
2const path = require('path')
3
4function tempStorageWindows(nameFile, data) {
5	fs.accessSync(path.resolve(process.env.TMP))
6	let filePath = `${process.env.TMP}/`
7	const fileExist = fs.existsSync(path.resolve(filePath, `${nameFile}`))
8
9	if (!fileExist) {
10		fs.writeFileSync(path.resolve(filePath, `${nameFile}`), `${data.trim()}`, { encoding: 'utf8' })
11		const toArray = fs.readFileSync(path.resolve(filePath, `${nameFile}`), { encoding: 'utf-8' }).split(' ')
12		return Array.from(
13			new Set([
14				...toArray
15					.map((val) => val.trim().replace(/[\s]/gi, ','))
16					.join('')
17					.trim()
18					.split(',')
19			])
20		)
21	} else {
22		fs.appendFileSync(path.resolve(filePath, `${nameFile}`), `\n${data.trim()}`, { encoding: 'utf-8' })
23		const toArray = fs.readFileSync(path.resolve(filePath, `${nameFile}`), { encoding: 'utf-8' }).split(' ')
24		return Array.from(
25			new Set([
26				...toArray
27					.map((val) => val.trim().replace(/[\s]/gi, ','))
28					.join('')
29					.trim()
30					.split(',')
31			])
32		)
33	}
34}
35
36function tempStorageLinux(nameFile, data) {
37	let filePath = `/tmp`
38	const fileExist = fs.existsSync(path.resolve(filePath, `${nameFile}`))
39
40	if (!fileExist) {
41		fs.writeFileSync(path.resolve(filePath, `${nameFile}`), `${data.trim()}`, { encoding: 'utf8' })
42		const toArray = fs.readFileSync(path.resolve(filePath, `${nameFile}`), { encoding: 'utf-8' }).split(' ')
43		return Array.from(
44			new Set([
45				...toArray
46					.map((val) => val.trim().replace(/[\s]/gi, ','))
47					.join('')
48					.trim()
49					.split(',')
50			])
51		)
52	} else {
53		fs.appendFileSync(path.resolve(filePath, `${nameFile}`), `\n${data.trim()}`, { encoding: 'utf-8' })
54		const toArray = fs.readFileSync(path.resolve(filePath, `${nameFile}`), { encoding: 'utf-8' }).split(' ')
55		return Array.from(
56			new Set([
57				...toArray
58					.map((val) => val.trim().replace(/[\s]/gi, ','))
59					.join('')
60					.trim()
61					.split(',')
62			])
63		)
64	}
65}
66
67function checkOs(nameFile, data) {
68	if (process.platform === 'win32') {
69		return tempStorageWindows(nameFile, data)
70	} else {
71		return tempStorageLinux(nameFile, data)
72	}
73}
74
75const res = checkOs('index.txt', 'samsul')
76console.log(res)