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		<title>Welcome to Tech by Example</title>
		<link><![CDATA[https://techbyexample.com]]></link>
		<description><![CDATA[Welcome to Tech by Example]]></description>
		<lastBuildDate><![CDATA[Wed, 05 Oct 2022 14:45:00 +0000]]></lastBuildDate>
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			<guid><![CDATA[https://techbyexample.com/ruby-hash-nested-delete/]]></guid>
			<link><![CDATA[https://techbyexample.com/ruby-hash-nested-delete/]]></link>
			<title>Delete a nested key in a hash in Ruby Language</title>
			<pubDate><![CDATA[Wed, 05 Oct 2022 14:45:00 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/posts/]]></guid>
			<link><![CDATA[https://techbyexample.com/posts/]]></link>
			<title>Posts</title>
			<pubDate><![CDATA[Sat, 14 Aug 2021 09:18:31 +0000]]></pubDate>
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			<guid><![CDATA[https://techbyexample.com/]]></guid>
			<link><![CDATA[https://techbyexample.com/]]></link>
			<title>Home</title>
			<pubDate><![CDATA[Sat, 12 Oct 2024 05:55:11 +0000]]></pubDate>
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					<item>
			<guid><![CDATA[https://techbyexample.com/current-user-linux/]]></guid>
			<link><![CDATA[https://techbyexample.com/current-user-linux/]]></link>
			<title>Know the current user on Linux</title>
			<pubDate><![CDATA[Wed, 09 Aug 2023 13:13:34 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/ruby-string-bool/]]></guid>
			<link><![CDATA[https://techbyexample.com/ruby-string-bool/]]></link>
			<title>Ruby convert string to bool</title>
			<pubDate><![CDATA[Thu, 24 Aug 2023 07:24:14 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/abort-script-command-fails/]]></guid>
			<link><![CDATA[https://techbyexample.com/abort-script-command-fails/]]></link>
			<title>Abort or exit a shell script if any command fails</title>
			<pubDate><![CDATA[Sat, 27 May 2023 16:50:26 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/ruby-regex-match-if/]]></guid>
			<link><![CDATA[https://techbyexample.com/ruby-regex-match-if/]]></link>
			<title>Ruby regex match in an if check</title>
			<pubDate><![CDATA[Wed, 05 Oct 2022 14:39:21 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/jupyter-notebook-schema-not-found/]]></guid>
			<link><![CDATA[https://techbyexample.com/jupyter-notebook-schema-not-found/]]></link>
			<title>Jupyter notebook &#8220;Schema Not Found&#8221; 404 error</title>
			<pubDate><![CDATA[Sat, 12 Oct 2024 05:53:55 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/bin-sh-points/]]></guid>
			<link><![CDATA[https://techbyexample.com/bin-sh-points/]]></link>
			<title>How to find what /bin/sh points to on your machine</title>
			<pubDate><![CDATA[Mon, 29 May 2023 05:32:31 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/chess-low-level-design/]]></guid>
			<link><![CDATA[https://techbyexample.com/chess-low-level-design/]]></link>
			<title>Chess Game System Design</title>
			<pubDate><![CDATA[Wed, 08 Feb 2023 08:22:04 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/grep-two-words-together-terminal/]]></guid>
			<link><![CDATA[https://techbyexample.com/grep-two-words-together-terminal/]]></link>
			<title>Grep two words together in terminal</title>
			<pubDate><![CDATA[Wed, 09 Nov 2022 13:13:57 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/zsh-no-matches-found-head/]]></guid>
			<link><![CDATA[https://techbyexample.com/zsh-no-matches-found-head/]]></link>
			<title>zsh: no matches found: HEAD^</title>
			<pubDate><![CDATA[Tue, 11 Oct 2022 15:54:42 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/scanf-load-error-ruby/]]></guid>
			<link><![CDATA[https://techbyexample.com/scanf-load-error-ruby/]]></link>
			<title>Fix LoadError cannot load such file &#8212; scanf in Ruby 2.7.0</title>
			<pubDate><![CDATA[Tue, 11 Oct 2022 15:21:18 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/p2p-pub-sub-message-queue/]]></guid>
			<link><![CDATA[https://techbyexample.com/p2p-pub-sub-message-queue/]]></link>
			<title>Point to Point (P2P) vs Pub/Sub in Distributed Message Queue</title>
			<pubDate><![CDATA[Tue, 02 May 2023 14:00:45 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/instagram-system-design/]]></guid>
			<link><![CDATA[https://techbyexample.com/instagram-system-design/]]></link>
			<title>Instagram System Design</title>
			<pubDate><![CDATA[Sun, 27 Nov 2022 15:57:56 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/system-design-hit-counter/]]></guid>
			<link><![CDATA[https://techbyexample.com/system-design-hit-counter/]]></link>
			<title>Design a hit counter</title>
			<pubDate><![CDATA[Sat, 31 Dec 2022 13:25:04 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/nearby-friends-system-design/]]></guid>
			<link><![CDATA[https://techbyexample.com/nearby-friends-system-design/]]></link>
			<title>Nearby Friends System Design</title>
			<pubDate><![CDATA[Mon, 27 Feb 2023 16:27:46 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/e2mmap-load-error-ruby/]]></guid>
			<link><![CDATA[https://techbyexample.com/e2mmap-load-error-ruby/]]></link>
			<title>Fix LoadError cannot load such file &#8212; e2mmap in Ruby 2.7.0</title>
			<pubDate><![CDATA[Tue, 11 Oct 2022 15:18:45 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/current-user-gropus/]]></guid>
			<link><![CDATA[https://techbyexample.com/current-user-gropus/]]></link>
			<title>Check all groups that current logged in user belong to on Linux</title>
			<pubDate><![CDATA[Sun, 10 Dec 2023 16:07:46 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/file-exists-ruby/]]></guid>
			<link><![CDATA[https://techbyexample.com/file-exists-ruby/]]></link>
			<title>Check if a file exists in Ruby Language</title>
			<pubDate><![CDATA[Mon, 26 Dec 2022 09:09:45 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/lfu-cache-implementation-design/]]></guid>
			<link><![CDATA[https://techbyexample.com/lfu-cache-implementation-design/]]></link>
			<title>LFU Cache Design and Implementation</title>
			<pubDate><![CDATA[Mon, 06 Mar 2023 17:08:59 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/longest-word-dictionary/]]></guid>
			<link><![CDATA[https://techbyexample.com/longest-word-dictionary/]]></link>
			<title>Program  for Longest Word in Dictionary through Deleting</title>
			<pubDate><![CDATA[Fri, 30 Sep 2022 17:33:13 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/leaderboard-system-design/]]></guid>
			<link><![CDATA[https://techbyexample.com/leaderboard-system-design/]]></link>
			<title>Design a Leaderboard or Low-Level Design of a Leaderboard</title>
			<pubDate><![CDATA[Fri, 03 Mar 2023 08:20:26 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/snake-ladder-game-oops-design/]]></guid>
			<link><![CDATA[https://techbyexample.com/snake-ladder-game-oops-design/]]></link>
			<title>System Design of Snake and Ladder game</title>
			<pubDate><![CDATA[Fri, 03 Mar 2023 08:15:33 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/parking-lot-system-design/]]></guid>
			<link><![CDATA[https://techbyexample.com/parking-lot-system-design/]]></link>
			<title>Parking Lot System Design</title>
			<pubDate><![CDATA[Fri, 30 Dec 2022 09:29:14 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/traverse-three-arrays-ruby/]]></guid>
			<link><![CDATA[https://techbyexample.com/traverse-three-arrays-ruby/]]></link>
			<title>Traverse three arrays together in Ruby Language</title>
			<pubDate><![CDATA[Sat, 24 Sep 2022 12:51:48 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/folder-favorite/]]></guid>
			<link><![CDATA[https://techbyexample.com/folder-favorite/]]></link>
			<title>How to make any folder a favorite  in MAC OS</title>
			<pubDate><![CDATA[Fri, 14 Oct 2022 07:10:52 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/remove-linked-list-elements-program/]]></guid>
			<link><![CDATA[https://techbyexample.com/remove-linked-list-elements-program/]]></link>
			<title>Remove Linked List Elements Program</title>
			<pubDate><![CDATA[Thu, 15 Sep 2022 14:42:04 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/count-unguarded-cells-program/]]></guid>
			<link><![CDATA[https://techbyexample.com/count-unguarded-cells-program/]]></link>
			<title>Count unguarded cells program</title>
			<pubDate><![CDATA[Thu, 25 Aug 2022 17:04:24 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/program-for-ugly-number-2-in-go-golang/]]></guid>
			<link><![CDATA[https://techbyexample.com/program-for-ugly-number-2-in-go-golang/]]></link>
			<title>Program for ugly number 2 in Go (Golang)</title>
			<pubDate><![CDATA[Sat, 13 Aug 2022 12:07:57 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/directory-based-sharding/]]></guid>
			<link><![CDATA[https://techbyexample.com/directory-based-sharding/]]></link>
			<title>Understanding Directory-Based Sharding</title>
			<pubDate><![CDATA[Mon, 29 Aug 2022 15:33:57 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/graph-bipartite-program/]]></guid>
			<link><![CDATA[https://techbyexample.com/graph-bipartite-program/]]></link>
			<title>Is Graph Bipartite Program</title>
			<pubDate><![CDATA[Mon, 01 Aug 2022 05:36:17 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/recover-binary-search-tree/]]></guid>
			<link><![CDATA[https://techbyexample.com/recover-binary-search-tree/]]></link>
			<title>Recover Binary Search Tree Program</title>
			<pubDate><![CDATA[Fri, 19 Aug 2022 17:18:36 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/program-ugly-number/]]></guid>
			<link><![CDATA[https://techbyexample.com/program-ugly-number/]]></link>
			<title>Program for an ugly number</title>
			<pubDate><![CDATA[Fri, 12 Aug 2022 13:03:48 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/binary-tree-maximum-path-sum/]]></guid>
			<link><![CDATA[https://techbyexample.com/binary-tree-maximum-path-sum/]]></link>
			<title>Binary Tree Maximum Path Sum Program</title>
			<pubDate><![CDATA[Sat, 30 Jul 2022 04:06:20 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/sort-characters-frequency/]]></guid>
			<link><![CDATA[https://techbyexample.com/sort-characters-frequency/]]></link>
			<title>Sort characters by frequency</title>
			<pubDate><![CDATA[Thu, 28 Jul 2022 16:26:09 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/program-income-tax-paid/]]></guid>
			<link><![CDATA[https://techbyexample.com/program-income-tax-paid/]]></link>
			<title>Program for Income Tax Paid</title>
			<pubDate><![CDATA[Tue, 26 Jul 2022 15:16:32 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/print-all-binary-tree-paths/]]></guid>
			<link><![CDATA[https://techbyexample.com/print-all-binary-tree-paths/]]></link>
			<title>Print all Binary Tree Paths</title>
			<pubDate><![CDATA[Wed, 20 Jul 2022 14:52:03 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/reverse-vowels-of-a-string/]]></guid>
			<link><![CDATA[https://techbyexample.com/reverse-vowels-of-a-string/]]></link>
			<title>Program  to  Reverse vowels of a string</title>
			<pubDate><![CDATA[Tue, 19 Jul 2022 16:10:32 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/program-matrix-rotation-target/]]></guid>
			<link><![CDATA[https://techbyexample.com/program-matrix-rotation-target/]]></link>
			<title>Determine Whether Matrix Can Be Obtained By Rotation</title>
			<pubDate><![CDATA[Tue, 19 Jul 2022 04:40:30 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/longest-consecutive-sequence/]]></guid>
			<link><![CDATA[https://techbyexample.com/longest-consecutive-sequence/]]></link>
			<title>Longest Consecutive Sequence Program</title>
			<pubDate><![CDATA[Thu, 21 Jul 2022 16:03:52 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/virtual-ip/]]></guid>
			<link><![CDATA[https://techbyexample.com/virtual-ip/]]></link>
			<title>What is Virtual IP</title>
			<pubDate><![CDATA[Thu, 11 May 2023 03:11:41 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/detonate-maximum-bombs-program/]]></guid>
			<link><![CDATA[https://techbyexample.com/detonate-maximum-bombs-program/]]></link>
			<title>Detonate the maximum bombs program</title>
			<pubDate><![CDATA[Sun, 17 Jul 2022 13:27:32 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/number-double-exists/]]></guid>
			<link><![CDATA[https://techbyexample.com/number-double-exists/]]></link>
			<title>Check If N and Its Double Exist</title>
			<pubDate><![CDATA[Mon, 25 Jul 2022 16:59:35 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/program-for-pascals-triangle/]]></guid>
			<link><![CDATA[https://techbyexample.com/program-for-pascals-triangle/]]></link>
			<title>Program for Pascal&#8217;s Triangle</title>
			<pubDate><![CDATA[Mon, 25 Jul 2022 11:41:56 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/rotting-oranges-program/]]></guid>
			<link><![CDATA[https://techbyexample.com/rotting-oranges-program/]]></link>
			<title>Rotting Oranges Program</title>
			<pubDate><![CDATA[Sun, 17 Jul 2022 13:00:51 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/count-unreachable-pair-nodes/]]></guid>
			<link><![CDATA[https://techbyexample.com/count-unreachable-pair-nodes/]]></link>
			<title>Count unreachable  pair of nodes in an undirected graph</title>
			<pubDate><![CDATA[Fri, 15 Jul 2022 17:07:43 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/number-appear-array/]]></guid>
			<link><![CDATA[https://techbyexample.com/number-appear-array/]]></link>
			<title>Find the number which appears once in an  array</title>
			<pubDate><![CDATA[Thu, 14 Jul 2022 16:43:25 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/majority-element-array/]]></guid>
			<link><![CDATA[https://techbyexample.com/majority-element-array/]]></link>
			<title>Majority element in an array</title>
			<pubDate><![CDATA[Mon, 06 Jun 2022 04:08:38 +0000]]></pubDate>
		</item>
					<item>
			<guid><![CDATA[https://techbyexample.com/set-e-command/]]></guid>
			<link><![CDATA[https://techbyexample.com/set-e-command/]]></link>
			<title>What does the set -e command do</title>
			<pubDate><![CDATA[Fri, 26 May 2023 17:25:02 +0000]]></pubDate>
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