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  197. <body>

  198. <div id="content" class="content">

  199. <h1 class="title">Lab9 Solution Amirlan Sharipov (BS21-CS-01)</h1>

  200. <div id="table-of-contents" role="doc-toc">

  201. <h2>Table of Contents</h2>

  202. <div id="text-table-of-contents" role="doc-toc">

  203. <ul>

  204. <li><a href="#org21d542a">1. Question 1</a></li>

  205. <li><a href="#org3b74767">2. Question 2</a></li>

  206. <li><a href="#org8d3c3fc">3. Question 3</a></li>

  207. <li><a href="#org469c55f">4. Question 4</a></li>

  208. <li><a href="#orgdfe38ae">5. Question 5</a>

  209. <ul>

  210. <li><a href="#org9953654">5.1. Add gpg atom&rsquo;s gpg keys</a></li>

  211. <li><a href="#org8291486">5.2. Add atom&rsquo;s repository to sources list</a></li>

  212. <li><a href="#orgef945fa">5.3. Dowload packages information from all sources</a></li>

  213. <li><a href="#org3bb35d0">5.4. Search for atom</a></li>

  214. <li><a href="#org232fa14">5.5. Finally install atom</a></li>

  215. </ul>

  216. </li>

  217. <li><a href="#orgb6f9c6c">6. Question 6</a></li>

  218. </ul>

  219. </div>

  220. </div>

  221. 

  222. <div id="outline-container-org21d542a" class="outline-2">

  223. <h2 id="org21d542a"><span class="section-number-2">1.</span> Question 1</h2>

  224. <div class="outline-text-2" id="text-1">

  225. <p>

  226. One of the alternative is to use GPS-based ntp and sync time with the satellites.

  227. </p>

  228. </div>

  229. </div>

  230. 

  231. <div id="outline-container-org3b74767" class="outline-2">

  232. <h2 id="org3b74767"><span class="section-number-2">2.</span> Question 2</h2>

  233. <div class="outline-text-2" id="text-2">

  234. <p>

  235. Use one server as an ntp client and another as an ntp server and sync them regularly using cron.

  236. </p>

  237. </div>

  238. </div>

  239. 

  240. <div id="outline-container-org8d3c3fc" class="outline-2">

  241. <h2 id="org8d3c3fc"><span class="section-number-2">3.</span> Question 3</h2>

  242. <div class="outline-text-2" id="text-3">

  243. <p>

  244. apt is a new command-line interface aimer for interactive usage.

  245. apt is a high-level tool to interact with tools like apt-get and apt-cache.

  246. </p>

  247. </div>

  248. </div>

  249. 

  250. <div id="outline-container-org469c55f" class="outline-2">

  251. <h2 id="org469c55f"><span class="section-number-2">4.</span> Question 4</h2>

  252. <div class="outline-text-2" id="text-4">

  253. <p>

  254. upgrade only upgrades the packages and never removes them, whereas full-upgrade may result in removal of some packages. This may cause problems for system administrators.

  255. </p>

  256. </div>

  257. </div>

  258. 

  259. <div id="outline-container-orgdfe38ae" class="outline-2">

  260. <h2 id="orgdfe38ae"><span class="section-number-2">5.</span> Question 5</h2>

  261. <div class="outline-text-2" id="text-5">

  262. <p>

  263. The information is taken from <a href="https://linuxhint.com/install-atom-text-editor-ubuntu-22-04/">https://linuxhint.com/install-atom-text-editor-ubuntu-22-04/</a>

  264. I am very skeptical about this method. Atom is deprecated. As well as apt-key. But it works

  265. </p>

  266. </div>

  267. 

  268. <div id="outline-container-org9953654" class="outline-3">

  269. <h3 id="org9953654"><span class="section-number-3">5.1.</span> Add gpg atom&rsquo;s gpg keys</h3>

  270. <div class="outline-text-3" id="text-5-1">

  271. <p>

  272. wget -qO - <a href="https://packagecloud.io/AtomEditor/atom/gpgkey">https://packagecloud.io/AtomEditor/atom/gpgkey</a> | sudo apt-key add -

  273. </p>

  274. </div>

  275. </div>

  276. <div id="outline-container-org8291486" class="outline-3">

  277. <h3 id="org8291486"><span class="section-number-3">5.2.</span> Add atom&rsquo;s repository to sources list</h3>

  278. <div class="outline-text-3" id="text-5-2">

  279. <p>

  280. sudo sh -c &rsquo;echo &ldquo;deb [arch=amd64] <a href="https://packagecloud.io/AtomEditor/atom/any/">https://packagecloud.io/AtomEditor/atom/any/</a> any main&rdquo; &gt; /etc/apt/sources.list.d/atom.list&rsquo;

  281. </p>

  282. </div>

  283. </div>

  284. <div id="outline-container-orgef945fa" class="outline-3">

  285. <h3 id="orgef945fa"><span class="section-number-3">5.3.</span> Dowload packages information from all sources</h3>

  286. <div class="outline-text-3" id="text-5-3">

  287. <p>

  288. sudo apt update

  289. </p>

  290. </div>

  291. </div>

  292. <div id="outline-container-org3bb35d0" class="outline-3">

  293. <h3 id="org3bb35d0"><span class="section-number-3">5.4.</span> Search for atom</h3>

  294. <div class="outline-text-3" id="text-5-4">

  295. <p>

  296. apt search atom

  297. There was a huge output with atom in it.

  298. </p>

  299. </div>

  300. </div>

  301. <div id="outline-container-org232fa14" class="outline-3">

  302. <h3 id="org232fa14"><span class="section-number-3">5.5.</span> Finally install atom</h3>

  303. <div class="outline-text-3" id="text-5-5">

  304. <p>

  305. sudo apt install atom

  306. </p>

  307. </div>

  308. </div>

  309. </div>

  310. 

  311. <div id="outline-container-orgb6f9c6c" class="outline-2">

  312. <h2 id="orgb6f9c6c"><span class="section-number-2">6.</span> Question 6</h2>

  313. <div class="outline-text-2" id="text-6">

  314. <div class="org-src-container">

  315. <pre class="src src-bash"><span style="color: #c792ea;">cat</span> control create-package.sh

  316. </pre>

  317. </div>

  318. 

  319. <pre class="example" id="orge68b8fa">

  320. Package: hellopackage

  321. Version: 1.0

  322. Architecture: all

  323. Maintainer: RinRi

  324. Depends: python3

  325. Description: Hello world

  326. #!/bin/bash

  327. 

  328. rm -rf hellopackage

  329. mkdir -p hellopackage hellopackage/usr/local/bin hellopackage/var/helloworld

  330. printf "%s" '#!/usr/bin/env python3\nprint("Hello, World!")' &gt; hellopackage/var/helloworld/helloworld.py

  331. printf "%s" '#!/bin/bash\n/var/helloworld/helloworld.py' &gt; hellopackage/usr/local/bin/helloworld

  332. chmod -R 0755 hellopackage/var/helloworld hellopackage/usr/local/bin/helloworld

  333. 

  334. mkdir -p hellopackage/DEBIAN

  335. cp control hellopackage/DEBIAN/

  336. dpkg-deb --build --root-owner-group hellopackage

  337. </pre>

  338. 

  339. <p>

  340. After this just use sudo apt install ./hellopackage.deb and everything works.

  341. </p>

  342. 

  343. 

  344. <div id="orgf4ac92c" class="figure">

  345. <p><img src="./lab9-image-01.jpg" alt="lab9-image-01.jpg" />

  346. </p>

  347. </div>

  348. 

  349. <p>

  350. The artifacts created by the package are the same as in the image but from the root directory.

  351. </p>

  352. </div>

  353. </div>

  354. </div>

  355. <div id="postamble" class="status">

  356. <p class="author">Author: Amirlan Sharipov (BS21-CS-01)</p>

  357. <p class="date">Created: 2023-03-30 Thu 21:34</p>

  358. </div>

  359. </body>

  360. </html>