Programuotojo pasaulyje

[terminalas]

Calculating average of list of numbers

awk '{sum+=$1} END {print "avg:", sum/NR}' RS="\n" numbers.txt

[terminalas]

Piping into CLI #PHP

grep something | php -r "print_r(stream_get_contents(STDIN));"

[terminalas]

How fast you can start working on new machine?

This week I’ve got new laptop. I was so excited so I wanted to start working with it as soon as possible. Didn’t want to waste my work, nor sleep hours. And... in 36 minutes I managed to setup all needed environment for my work. Including nginx, php-fpm, mysql, rabbitmq, java-jdk and my beloved iterm2 and sublime text with all my settings.

36 minutes! Pretty nice. But with some minor improvements I think I can do better. Maybe 15mins? 

[terminalas]

Protip: monitor your background scripts. Execution time, memory usage. Create alerts.

[terminalas]

Protip: if using cronjob, check if process not running, before starting another one.

[terminalas]

$ gem install t

A command-line power tool for Twitter.  https://github.com/sferik/t

[terminalas]

New Year Resolution #2: Infrastructure as Code.

Everywhere. From home to business - everything should be managed under VCS.

[terminalas]

Home media center: The Beginning

First step - Kodi (ex. XBMC) on Android TV, media source - folder shared over HTTP.

Upcoming - NAS.

[terminalas]

New Year resolution: write less code, solve more problems.

[terminalas]

That feeling when you find this kind of comment in code...

// No idea why, but it must be that way.

And the author is... ME! I just want to punch myself....

[terminalas]

Delivering emails within long-lasting jobs

I found a little issue with email delivery using SMTP within long-lasting jobs. The problem - SMTP connection is created for first email delivery, and kept open only for certain time. When the job tries to send another email after some time - it fails. Solution - reconnect to smtp server before sending email.

Not sure yet how efficient it is, but it works now.

Here is my trick:

<?php

class .... {

   public function __construct(Swift_Mailer $mailer)    {        $this->mailer = $mailer;    }

   public function deliver(Swift_Message $message)    {        // get configured mailer transport        $transport = $this->mailer->getTransport();        // connect to smtp server        $transport->start();        // send message        $result = $this->mailer->send($message);        // close connection        $transport->stop();

       return $result;    }

}

[terminalas]

$ tail -f *.log is like crystal ball for admin

[terminalas]

Removing code...

That feeling, when there is A LOT OF CODE, and only 1/3 of it is necessary for a fully working functionallity.

And you refactor.. And more lines of code you delete, more you feel unsure about what you are doing... 

[terminalas]

There is a difference between git merge -Xours and git rebase -Xours

It’s a reminder for myself. Somehow from time to time I mix those and the result - lots of crap pushed to repository.

Don’t be like me, always remember the difference.

Very simple and clear explanation: https://demisx.github.io/git/rebase/2015/07/02/git-rebase-keep-my-branch-changes.html

[terminalas]

Bash skriptai - maži, bet galingi. Hell yeah!

[terminalas]

Bug report

How to fill a bug?

- Take a screenshot - Print it - Mark the problems with a pencil - Scan it - Create PDF - Send it by email

True story.

[terminalas]

Deploy big release like a champ.