Merge bc767a0ad3 into f64257f02c

README.md

@@ -10,7 +10,7 @@ pairing with smart people at Hashrocket.
 
 For a steady stream of TILs, [sign up for my newsletter](https://crafty-builder-6996.ck.page/e169c61186).
 
-_1527 TILs and counting..._
+_1521 TILs and counting..._
 
 ---
 
@@ -402,8 +402,6 @@ _1527 TILs and counting..._
 - [Do Something N Times](go/do-something-n-times.md)
 - [Find Executables Installed By Go](go/find-executables-installed-by-go.md)
 - [Not So Random](go/not-so-random.md)
-- [Parse A String Into Individual Fields](go/parse-a-string-into-individual-fields.md)
-- [Parse Flags From CLI Arguments](go/parse-flags-from-cli-arguments.md)
 - [Replace The Current Process With An External Command](go/replace-the-current-process-with-an-external-command.md)
 - [Sleep For A Duration](go/sleep-for-a-duration.md)
 - [Upgrading From An Older Version On Mac](go/upgrading-from-an-older-version-on-mac.md)
@@ -459,7 +457,6 @@ _1527 TILs and counting..._
 - [Get Random Images From Unsplash](internet/get-random-images-from-unsplash.md)
 - [Search Tweets By Author](internet/search-tweets-by-author.md)
 - [Show All Pivotal Stories With Blockers](internet/show-all-pivotal-stories-with-blockers.md)
-- [Verify Site Ownership With DNS Record](internet/verify-site-ownership-with-dns-record.md)
 
 ### Java
 
@@ -576,7 +573,6 @@ _1527 TILs and counting..._
 ### jj
 
 - [Colocate jj And git Directories For Project](jj/colocate-jj-and-git-directories-for-project.md)
-- [Find System-wide Config File For User](jj/find-system-wide-config-file-for-user.md)
 
 ### jq
 
@@ -640,7 +636,6 @@ _1527 TILs and counting..._
 - [Specify App When Opening From Command Line](mac/specify-app-when-opening-from-command-line.md)
 - [Use Default Screenshot Shortcuts With CleanShot X](mac/use-default-screenshot-shortcuts-with-cleanshot-x.md)
 - [View All Windows Of The Current App](mac/view-all-windows-of-the-current-app.md)
-- [Write System Clipboard To A File](mac/write-system-clipboard-to-a-file.md)
 
 ### MongoDB
 
@@ -779,7 +774,6 @@ _1527 TILs and counting..._
 - [Escaping String Literals With Dollar Quoting](postgres/escaping-string-literals-with-dollar-quoting.md)
 - [Export Query Results To A CSV](postgres/export-query-results-to-a-csv.md)
 - [Extracting Nested JSON Data](postgres/extracting-nested-json-data.md)
-- [Fetch Specific Number Of Results](postgres/fetch-specific-number-of-results.md)
 - [Find Duplicate Records In Table Without Unique Id](postgres/find-duplicate-records-in-table-without-unique-id.md)
 - [Find Records That Contain Duplicate Values](postgres/find-records-that-contain-duplicate-values.md)
 - [Find Records That Have Multiple Associated Records](postgres/find-records-that-have-multiple-associated-records.md)

go/parse-a-string-into-individual-fields.md

@@ -1,39 +0,0 @@
-# Parse A String Into Individual Fields
-
-Let's say you're reading in data from a file or otherwise dealing with an
-arbitrary string of data. If that string has a series of values separated by
-whitespace, you can parse it into individual fields with
-[`strings.Fields`](https://pkg.go.dev/strings#Fields).
-
-```go
-import (
-	"fmt"
-	"strings"
-)
-
-func main() {
-	data := "3 5 2 6 7 1 9"
-	fields := strings.Fields(data)
-
-	fmt.Printf("Fields: %v", fields)
-	// [3 5 2 6 7 1 9]
-}
-```
-
-Here is another example where we can see that `strings.Fields` deals with
-multiple whitespace and surrounding whitespace:
-
-```go
-import (
-	"fmt"
-	"strings"
-)
-
-func main() {
-	data := "  go  java c++ rust "
-	fields := strings.Fields(data)
-
-	fmt.Printf("%v", fields)
-	// [go java c++ rust]
-}
-```

go/parse-flags-from-cli-arguments.md

@@ -1,65 +0,0 @@
-# Parse Flags From CLI Arguments
-
-Though we can grab the arguments to a Go program from `os.Args`, it requires
-some manual parsing. With the built-in `flag` package, we can declare specific
-flags our program accepts, by type. When we parse them, they will be separated
-out from the rest of the positional arguments.
-
-Here is an example of the program that accepts a boolean `debug` flag. This
-will work with either `-debug` or `--debug`.
-
-```go
-package main
-
-import (
-	"flag"
-	"fmt"
-	"os"
-)
-
-func main() {
-	var debug bool
-	flag.BoolVar(&debug, "debug", false, "turns on debug mode, extra logging")
-	flag.Parse()
-
-	positionalArgs := flag.Args()
-
-	if len(positionalArgs) < 1 {
-		fmt.Println("Please specify which part to run: 1 or 2")
-		os.Exit(1)
-	}
-
-	if debug {
-		fmt.Println("We are in debug mode...")
-		fmt.Println("Received the following argument:", positionalArgs[0])
-	}
-
-	// ...
-}
-```
-
-We can run the program in debug mode like so:
-
-```bash
-$ go run . --debug 123
-We are in debug mode...
-Received the following argument: 123
-```
-
-We can also take advantage of the `help` flag that we get for free:
-
-```bash
-$ go run . --help
-Usage of /var/folders/62/lx9pcjbs1zbd83zg6twwym2r0000gn/T/go-build3212087168/b001/exe/test:
-  -debug
-        turns on debug mode, extra logging
-```
-
-Note: any recognized flags need to come before any of the position arguments.
-The `debug` flag won't be picked up if we run the program like this:
-
-```bash
-$ go run . 123 --debug
-```
-
-[source](https://pkg.go.dev/flag)

internet/verify-site-ownership-with-dns-record.md

@@ -1,28 +0,0 @@
-# Verify Site Ownership With DNS Record
-
-To run your site through Google Search Console and get detailed reports, you
-need to verify that you own the site. There are several manual ways of doing
-this that involve sticking a value unique to your URL in a file or header tag.
-There is a better way though.
-
-By adding a TXT DNS record wherever you domain's DNS is managed, you can prove
-to Google that you own the domain. That verification applies to all paths and
-subdomains of that domain.
-
-Some providers like Cloudflare have a mostly-automated process for this that
-Google can hook into as long as you grant permission via OAuth.
-
-You can also manually create the TXT record if necessary.
-
-Either way, it will look something like:
-
-```bash
-$ dig -t TXT visualmode.dev
-
-;; ANSWER SECTION:
-visualmode.dev.         377     IN      TXT     "google-site-verification=MBZ2S2fhnh2gHRxFniRrYW-O6mdyimJDRFj-f
-vblwtk"
-```
-
-More details are provided in the [Google Search Console
-docs](https://support.google.com/webmasters/answer/9008080?hl=en#domain_name_verification).

jj/find-system-wide-config-file-for-user.md

@@ -1,25 +0,0 @@
-# Find System-wide Config File For User
-
-The `jj` CLI can be configured in a couple different places. When I recently
-ran a `jj config` command, I was curious where specifically it was getting set.
-Those changes didn't appear in the repo's config (`./.jj/repo/config.toml`).
-That makes sense since it would only apply to that repo. So, where is the
-system-wide config file?
-
-The following commond shows where on your machine it is located.
-
-```bash
-$ jj config path --user
-/Users/jbranchaud/Library/Application Support/jj/config.toml
-```
-
-Now, the next time I set a config like this:
-
-```bash
-$ jj config set --user ui.paginate never
-```
-
-or want to check what other config options are set to, I can visit that path
-and take a look.
-
-[source](https://github.com/martinvonz/jj/blob/main/docs/config.md)

mac/write-system-clipboard-to-a-file.md

@@ -1,19 +0,0 @@
-# Write System Clipboard To A File
-
-MacOS has two CLI utilities `pbcopy` and `pbpaste` which, respectively, copy
-_to_ and paste _from_ the system clipboard via the CLI.
-
-Let's say I've just copied a large block of text from somewhere onto my system
-clipboard. I now want to paste that into a new file. Instead of creating a new
-file, opening it up in my preferred editor, pasting all that text, and saving
-the file, I can run one small command from the CLI.
-
-```bash
-$ pbpaste > data.txt
-```
-
-This redirects the contents of `pbpaste` (which is the system clipboard) into
-the file `data.txt`. If that file doesn't already exist, then it will be
-created before the data is written to it.
-
-See `man pbpaste` for more details.

postgres/fetch-specific-number-of-results.md

@@ -1,42 +0,0 @@
-# Fetch Specific Number Of Results
-
-If you pull up just about any intro to PostgreSQL (or even SQL), one of the
-first things they are going to teach you is the `limit` clause. This is taught
-as _the_ way for limiting the result set to a specific number of rows.
-
-```sql
-> select title from books limit 4;
-+-----------------------+
-| title                 |
-|-----------------------|
-| The Secret History    |
-| A Gentleman in Moscow |
-| Exhalation: Stores    |
-| Annihilation          |
-+-----------------------+
-SELECT 4
-```
-
-You might be as surprised as I was to learn that `limit` is not part of the SQL
-standard. It is extremely common for this use case, but the SQL standard
-defines `fetch first N rows only` as the way to fetch a specific number of
-rows. As we can see, [it works identically to `limit
-N`](https://www.postgresql.org/docs/current/sql-select.html#SQL-LIMIT).
-
-```sql
-> select title from books fetch first 4 rows only;
-+-----------------------+
-| title                 |
-|-----------------------|
-| The Secret History    |
-| A Gentleman in Moscow |
-| Exhalation: Stores    |
-| Annihilation          |
-+-----------------------+
-SELECT 4
-```
-
-The `rows` and `row` keywords are interchangeable which makes statements more
-readable if, for instance, you're doing `... fetch first 1 row only`.
-
-[source](https://www.cybertec-postgresql.com/en/postgresql-limit-vs-fetch-first-rows-with-ties/)