While doing the e2e (end to end) tests for a Vue.JS frontend, I bumped into something interesting, which was really fun to fix/find a workaround for.

Firstly, for the e2e tests, I've used Nightwatch.js, which uses the Selenium API, and is written in Node.js.

The problem was that, I was not being able to clear some input tag field data using the API provided by Nightwatch -- browser.clearValue. For example:

browser.clearValue('input[type="text"]')

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Postgresql's postmaster (Postgresql cluster [not cluster in the usual notion] manager), listens on TCP socket and also on UNIX domain socket (for localhost use only). Using UNIX doamin sockets to connect to Postgresql is very useful as it is bound to filesystem access only, no network socket involved. As a result, we get less overhead and less resource usage.

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The answer is No.

This has tripped many Python developers, many times. I have come across this once again while answering this question on Stack Overflow.

The OP (Original Poster) asked:

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After a long time, I've started commit-ting to GitHub again (will keep on using GitLab too). While roaming around, found an old Gist of mine, discussing about gnuplot -- the command line plotting tool for GNU/Linux systems. The Gist is just a basic intro.

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I've started on a new project, basically sort of a side project; It is about trying to replace the typical one time task/job scheduling engines/systems, used in GNU/Linux, namely at, atrm, atq, batch and other similar ones.

I've named it hat (hyper-at). The idea is to replace all of the mentioned ones with a single engine, with more option and flexibility.

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In the world of RegEx (Regular Expressions), not all engines support non-greedy or lazy matching capability of input; the lazy matching was introduced in Perl, so any Regex engine that implements PCRE (Perl Compatible Regular Expression) supports lazy matching out of the box.

If you're on an engine that does not support non-greedy match, you can use some trick to achieve that.

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bash is written in C, so one might expect some remnants of C, but the fact is bash is very different from it -- bash (or any other shell, for that matter) was never designed to be a full-fledged programming language. bash was initially written to execute various *nix standard commands directly, in essence, an interface to do fork()-exec() (and brothers) calls.

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From time to time, we have come across questions like -- How can I make an iterator out of a sequence without explicitly calling the iter() function?

A follow-up question to that would be -- Can we preserve the sequences' properties intact, with just adding the needed properties to make it an iterator?

In answering these, we are also answering the obviously inferred question -- How can I expand functionalities of a class without modifying the class itself?

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On GNU/Linux, from time to time, we tend to face the issue with mistakenly using wrong service action commands on various init systems. For example, on a system with upstart being the init, one can mistakenly run

systemctl restart sshd

whoops! this is not a major mistake by itself but could easily turn into one (damn you muscle memory!)

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