Plurrrr

Access denied for user 'root'@'localhost'

In the afternoon I installed MySQL according to notes I had taken the previous time. When I ran

mysql_secure_installation

I discovered I had to use sudo. I thought I had forgotten to write this down. Next I tried to connect to the MySQL server as follows:

mysql -uroot -p

But I got an error: "ERROR 1698 (28000): Access denied for user 'root'@'localhost'". After some Googling I learnt that the security model in MySQL 5.7 has changed and that sudo is required if you want to login as user root.

• mysql

The shy calico cat

In the evening my mother spotted a calico cat. I took my iPhone 5 and tried to take a few photos but the cat was very shy.

• cat

Finding a user's ID on macOS

If you want to know a users uid on macOS or OS X you can use the directory service command line utility as follows:

dscl . -read /Users/john UniqueID

Which reports in my case:

UniqueID: 501

Another option is to use:

ls -n /Users | grep john

Which, reports in my case

drwxr-xr-x+ 46 501  20   1564 May 31 21:26 john

• macos
• command line

A clean install of macOS Mojave

In the evening I performed a clean install of macOS Mojave on the fusion drive of my Mac mini 2014 without any problems.

• macos

Another way to show PATH entries one per line

An alternative to the method I showed the first of June to show PATH entries one per line is:

echo -e ${PATH//:/\\n}

In bash this replaces all occurrences of : in the variable PATH with a newline character. For more information see Shell Parameter Expansion in the Bash Reference Manual.

• command line

Did Time Have A Beginning?

Did the Universe have a beginning, or a time before which nothing existed? Or did the Universe exist for an eternity, like an infinite line extending in both directions? Or, quite possibly, is our Universe cyclic like the circumference of a circle, where it repeats over and over indefinitely?

In the evening I read Did Time Have a Beginning by Ethan Siegel.

• science

Relearning Matrices as Linear Functions

Many of us have probably encountered matrices at some point in math. They’re these tables with seemingly byzantine rules for combining them. Take the first element of the first row, first element of the first column, multiply them together, then add, then spin three times fast… And this is to say nothing for the rules of inverting.

Source: Relearning Matrices as Linear Functions by Dhruv Parthasarathy.

• math

The Complete CSS Flex Box Tutorial

Last week I used flex box in a project. This evening I read The Complete CSS Flex Box Tutorial by Greg Sidelnikov to learn more about this useful CSS feature.

• css

Zsh becomes the default shell on macOS Catalina

Starting with the macOS Catalina beta, your Mac uses zsh as the default login shell and interactive shell. You can make zsh the default in earlier versions of macOS as well.

Source: Use zsh as the default shell on your Mac.

The reason for the switch away from (a very old version of) bash has to do with licensing.

Time for me to read The Z Shell Manual.

• shell
• macos

On Graveyard Hill

In the afternoon I listened to a new Pixies track, On Graveyard Hill, from their upcoming album "Beneath the Eyrie" out September 13, 2019.

• music
• pixies

WWDC Apple Special Event

In the evening I watched the Apple special event. From what I've heard and seen I like where iOS, now iPadOS, on the iPad is going; features like desktop being the default in Safari for sites, Files app with access to USB flash drives, multiple windows of the same app, etc.

Now I just have to save up for a new iPad as my iPad Air 2 got stolen nearly a year ago while living in Mexico.

• apple