sunsetting newsletter

Author: learnbyexample

100-page-python-intro-book-announcement/index.html

@@ -40,4 +40,4 @@
 </span><span style=color:#5597d6;>Not</span><span> fine
 </span><span style=color:#5597d6;>$ </span><span style=color:#72ab00;>[</span><span>[ </span><span style=color:#d07711;>'a[5]'</span><span> == </span><span style=color:#d07711;>'a[5]' </span><span style=color:#72ab00;>]</span><span>] </span><span style=color:#72ab00;>&& </span><span style=color:#b39f04;>echo </span><span style=color:#d07711;>'fine'
 </span><span style=color:#5597d6;>fine
-</span></code></pre><p>Having a minimal failing case from terminal was a relief. I tried <code>set -x</code> but that didn't light a bulb either. Finally, somehow I thought perhaps characters in the output was causing the issue and when <code>[]</code> characters were not present, the comparison worked as expected.<p>I did think quoting could be the issue, but dismissed it at first as both sides of comparison had the same command. Then my recent experience from reviewing <a href=https://www.packtpub.com/application-development/command-line-fundamentals>Command Line Fundamentals</a> book came in handy. I remembered that if quotes aren't used on RHS of comparison operator, it is treated as <code>glob</code> matching instead of string matching. Phew.<h2 id=tl-dr>TL;DR<a aria-label="Anchor link for: tl-dr" class=zola-anchor href=#tl-dr>🔗</a></h2><p>Always <a href=https://unix.stackexchange.com/questions/131766/why-does-my-shell-script-choke-on-whitespace-or-other-special-characters>quote strings in bash</a> unless you have a very good reason for not using them.<p>After adding double quotes around the command substitution commands, the script worked as expected. I thanked the user for opening the issue. And then informed the author for cli fundamentals book as well.</div><div class=post-footer><div class=post-tags><a href=https://learnbyexample.github.io/tags/shell-scripting/>#shell-scripting</a><a href=https://learnbyexample.github.io/tags/debugging/>#debugging</a><a href=https://learnbyexample.github.io/tags/corner-case/>#corner-case</a></div><hr color=#e6e6e6><div class=post-nav><p><a class=previous href=https://learnbyexample.github.io/python-for-maths/>← Python for maths</a><br></div><hr color=#e6e6e6><p>📰 Use <a href=https://learnbyexample.github.io/atom.xml>this link</a> for the Atom feed. <br> ✅ Follow me on <a href=https://twitter.com/learn_byexample>Twitter</a>, <a href=https://github.com/learnbyexample>GitHub</a> and <a href=https://www.youtube.com/c/learnbyexample42>Youtube</a> for interesting tech nuggets. <br> 📧 Subscribe to <a href=https://learnbyexample.gumroad.com/l/learnbyexample-weekly>learnbyexample weekly</a> for programming resources, tips, tools, free ebooks and more (free newsletter, delivered every Friday).<hr color=#e6e6e6></div></article></div></main></div><script src=https://learnbyexample.github.io/even.js></script>
+</span></code></pre><p>Having a minimal failing case from terminal was a relief. I tried <code>set -x</code> but that didn't light a bulb either. Finally, somehow I thought perhaps characters in the output was causing the issue and when <code>[]</code> characters were not present, the comparison worked as expected.<p>I did think quoting could be the issue, but dismissed it at first as both sides of comparison had the same command. Then my recent experience from reviewing <a href=https://www.packtpub.com/application-development/command-line-fundamentals>Command Line Fundamentals</a> book came in handy. I remembered that if quotes aren't used on RHS of comparison operator, it is treated as <code>glob</code> matching instead of string matching. Phew.<h2 id=tl-dr>TL;DR<a aria-label="Anchor link for: tl-dr" class=zola-anchor href=#tl-dr>🔗</a></h2><p>Always <a href=https://unix.stackexchange.com/questions/131766/why-does-my-shell-script-choke-on-whitespace-or-other-special-characters>quote strings in bash</a> unless you have a very good reason for not using them.<p>After adding double quotes around the command substitution commands, the script worked as expected. I thanked the user for opening the issue. And then informed the author for cli fundamentals book as well.</div><div class=post-footer><div class=post-tags><a href=https://learnbyexample.github.io/tags/shell-scripting/>#shell-scripting</a><a href=https://learnbyexample.github.io/tags/debugging/>#debugging</a><a href=https://learnbyexample.github.io/tags/corner-case/>#corner-case</a></div><hr color=#e6e6e6><div class=post-nav><p><a class=previous href=https://learnbyexample.github.io/python-for-maths/>← Python for maths</a><br></div><hr color=#e6e6e6><p>📰 Use <a href=https://learnbyexample.github.io/atom.xml>this link</a> for the Atom feed. <br> ✅ Follow me on <a href=https://twitter.com/learn_byexample>Twitter</a>, <a href=https://github.com/learnbyexample>GitHub</a> and <a href=https://www.youtube.com/c/learnbyexample42>Youtube</a> for interesting tech nuggets.<hr color=#e6e6e6></div></article></div></main></div><script src=https://learnbyexample.github.io/even.js></script>

2022-year-in-perspective/index.html

@@ -109,4 +109,4 @@
 </span></code></pre><p>Similarly, you can concatenate a string to a number to force string context.<pre class=language-ruby data-lang=ruby style=background-color:#f5f5f5;color:#1f1f1f;><code class=language-ruby data-lang=ruby><span>$ awk </span><span style=color:#d07711;>'BEGIN{n1="5.0"; n2=5; if(n1==n2) print "equal"}'
 </span><span>$ awk </span><span style=color:#d07711;>'BEGIN{n1="5.0"; n2=5; if(n1==n2".0") print "equal"}'
 </span><span>equal
-</span></code></pre><p>See <a href=https://www.gnu.org/software/gawk/manual/gawk.html#Strings-And-Numbers>gawk manual: How awk Converts Between Strings and Numbers</a> for more details.</p><br><h2 id=programming-ebooks>Programming ebooks<a aria-label="Anchor link for: programming-ebooks" class=zola-anchor href=#programming-ebooks>🔗</a></h2><p>Check out <a href=https://learnbyexample.github.io/books/>my ebooks</a> on Regular Expressions, Linux CLI tools, Python and Vim. You can get them all as a single bundle via <a href=https://leanpub.com/b/learnbyexample-all-books>leanpub</a> or <a href=https://learnbyexample.gumroad.com/l/all-books>gumroad</a>.</div><div class=post-footer><div class=post-tags><a href=https://learnbyexample.github.io/tags/gnu-awk/>#gnu-awk</a><a href=https://learnbyexample.github.io/tags/linux/>#linux</a></div><hr color=#e6e6e6><div class=post-nav><p><a class=previous href=https://learnbyexample.github.io/cli-text-processing-awk-announcement/>← CLI text processing with GNU awk book announcement</a><br><p><a class=next href=https://learnbyexample.github.io/understanding-python-regex-announcement/>Understanding Python re(gex)? book announcement →</a><br></div><hr color=#e6e6e6><p>📰 Use <a href=https://learnbyexample.github.io/atom.xml>this link</a> for the Atom feed. <br> ✅ Follow me on <a href=https://twitter.com/learn_byexample>Twitter</a>, <a href=https://github.com/learnbyexample>GitHub</a> and <a href=https://www.youtube.com/c/learnbyexample42>Youtube</a> for interesting tech nuggets. <br> 📧 Subscribe to <a href=https://learnbyexample.gumroad.com/l/learnbyexample-weekly>learnbyexample weekly</a> for programming resources, tips, tools, free ebooks and more (free newsletter, delivered every Friday).<hr color=#e6e6e6></div></article></div></main></div><script src=https://learnbyexample.github.io/even.js></script>
+</span></code></pre><p>See <a href=https://www.gnu.org/software/gawk/manual/gawk.html#Strings-And-Numbers>gawk manual: How awk Converts Between Strings and Numbers</a> for more details.</p><br><h2 id=programming-ebooks>Programming ebooks<a aria-label="Anchor link for: programming-ebooks" class=zola-anchor href=#programming-ebooks>🔗</a></h2><p>Check out <a href=https://learnbyexample.github.io/books/>my ebooks</a> on Regular Expressions, Linux CLI tools, Python and Vim. You can get them all as a single bundle via <a href=https://leanpub.com/b/learnbyexample-all-books>leanpub</a> or <a href=https://learnbyexample.gumroad.com/l/all-books>gumroad</a>.</div><div class=post-footer><div class=post-tags><a href=https://learnbyexample.github.io/tags/gnu-awk/>#gnu-awk</a><a href=https://learnbyexample.github.io/tags/linux/>#linux</a></div><hr color=#e6e6e6><div class=post-nav><p><a class=previous href=https://learnbyexample.github.io/cli-text-processing-awk-announcement/>← CLI text processing with GNU awk book announcement</a><br><p><a class=next href=https://learnbyexample.github.io/understanding-python-regex-announcement/>Understanding Python re(gex)? book announcement →</a><br></div><hr color=#e6e6e6><p>📰 Use <a href=https://learnbyexample.github.io/atom.xml>this link</a> for the Atom feed. <br> ✅ Follow me on <a href=https://twitter.com/learn_byexample>Twitter</a>, <a href=https://github.com/learnbyexample>GitHub</a> and <a href=https://www.youtube.com/c/learnbyexample42>Youtube</a> for interesting tech nuggets.<hr color=#e6e6e6></div></article></div></main></div><script src=https://learnbyexample.github.io/even.js></script>

2023-year-in-perspective/index.html

@@ -118,4 +118,4 @@
 </span><span style=color:#5597d6;>Moe</span><span>,</span><span style=color:#b3933a;>81
 </span><span style=color:#5597d6;>Ravi</span><span>,</span><span style=color:#b3933a;>77
 </span><span style=color:#5597d6;>Yui</span><span>,</span><span style=color:#b3933a;>92
-</span></code></pre><br><h2 id=further-reading>Further Reading<a aria-label="Anchor link for: further-reading" class=zola-anchor href=#further-reading>🔗</a></h2><ul><li><a href=https://www.gnu.org/software/datamash/alternatives/>Alternative one-liners</a> — examples with datamash compared to <code>awk</code>, <code>perl</code>, etc<li><a href=https://www.gnu.org/software/datamash/examples/>Documentation examples</a><li><a href=https://github.com/BurntSushi/xsv>xsv</a> — fast CSV command line toolkit</ul></div><div class=post-footer><div class=post-tags><a href=https://learnbyexample.github.io/tags/linux/>#linux</a><a href=https://learnbyexample.github.io/tags/command-line/>#command-line</a><a href=https://learnbyexample.github.io/tags/datamash/>#datamash</a></div><hr color=#e6e6e6><div class=post-nav><p><a class=previous href=https://learnbyexample.github.io/interactive-awk-tutorial/>← Interactive GNU awk tutorial</a><br><p><a class=next href=https://learnbyexample.github.io/cli-text-processing-coreutils-announcement/>CLI text processing with GNU Coreutils book announcement →</a><br></div><hr color=#e6e6e6><p>📰 Use <a href=https://learnbyexample.github.io/atom.xml>this link</a> for the Atom feed. <br> ✅ Follow me on <a href=https://twitter.com/learn_byexample>Twitter</a>, <a href=https://github.com/learnbyexample>GitHub</a> and <a href=https://www.youtube.com/c/learnbyexample42>Youtube</a> for interesting tech nuggets. <br> 📧 Subscribe to <a href=https://learnbyexample.gumroad.com/l/learnbyexample-weekly>learnbyexample weekly</a> for programming resources, tips, tools, free ebooks and more (free newsletter, delivered every Friday).<hr color=#e6e6e6></div></article></div></main></div><script src=https://learnbyexample.github.io/even.js></script>
+</span></code></pre><br><h2 id=further-reading>Further Reading<a aria-label="Anchor link for: further-reading" class=zola-anchor href=#further-reading>🔗</a></h2><ul><li><a href=https://www.gnu.org/software/datamash/alternatives/>Alternative one-liners</a> — examples with datamash compared to <code>awk</code>, <code>perl</code>, etc<li><a href=https://www.gnu.org/software/datamash/examples/>Documentation examples</a><li><a href=https://github.com/BurntSushi/xsv>xsv</a> — fast CSV command line toolkit</ul></div><div class=post-footer><div class=post-tags><a href=https://learnbyexample.github.io/tags/linux/>#linux</a><a href=https://learnbyexample.github.io/tags/command-line/>#command-line</a><a href=https://learnbyexample.github.io/tags/datamash/>#datamash</a></div><hr color=#e6e6e6><div class=post-nav><p><a class=previous href=https://learnbyexample.github.io/interactive-awk-tutorial/>← Interactive GNU awk tutorial</a><br><p><a class=next href=https://learnbyexample.github.io/cli-text-processing-coreutils-announcement/>CLI text processing with GNU Coreutils book announcement →</a><br></div><hr color=#e6e6e6><p>📰 Use <a href=https://learnbyexample.github.io/atom.xml>this link</a> for the Atom feed. <br> ✅ Follow me on <a href=https://twitter.com/learn_byexample>Twitter</a>, <a href=https://github.com/learnbyexample>GitHub</a> and <a href=https://www.youtube.com/c/learnbyexample42>Youtube</a> for interesting tech nuggets.<hr color=#e6e6e6></div></article></div></main></div><script src=https://learnbyexample.github.io/even.js></script>