How to make a tar file...

regex

How to find out which process is listening on a certain point on my mac. I'm often switching between projects, and have a server from another project running on a port that I now need for another server.

And it looks like Heroku's CLI doesn't always stop all processes correctly when you stop it using ctrl+c

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How to properly write a Rails migration file.

Add a column? Huh? What???

• Converting Array<->List in Java*. Been coding Java for 6+ years and still don't care to learn/memorize this.

• Objective-C block syntax

• bash test format and flags

• vim macro create and execute

I noticed I could never remember these, so I always make aliases, shell functions, or short ~/bin/ scripts for them instead:

• tar: xkcd.com/1168/

• netstat flags (other than "-tulpn" which I have memorized as "tull-pin" like "Tolkien")

• ssh tunnel syntax

Edit: *in one-line.
Array to list:

String[] array = ...;
List<String> immutableList = Arrays.asList(array);
List<String> mutableList = new ArrayList<String>(Arrays.asList(array));

List to array:

List<String> list = ...;
String[] array = list.toArray(new String[list.size()]);

Clear as mud...

RAILS MIGRATION

Regex. While I understand how it works and how it can be used, it's difficult for me to memorize the right regex that should be used at every point. So I just google whenever I want to make use of it. :)

For me it's "manually start postgresql"

Every once in a while my postgres server isn't running and I know to punch that into my browser and land on this Stack Overflow question, where I proceed to copy this command into my terminal:

pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start

It happens infrequently enough that I never bother to alias it or remember how to type it out. I just remember what to Google.

sed and awk and how to use them.

• Creating SSH Keys

Suprised tldr didn't got mentioned.

It's a pretty neat tool to do this kind of things...

Javascript array methods. Is this one in-place, or returning a new array? I don't know, but MDN does!

How to extract tar.gz file in Linux command line!

Everything git related

How to delete a remote branch in git.

Cherry picking commits in git, because I can never remember if it's cherrypick or cherry-pick

A more efficient way would be to just do it and correct if it errors, or alias it to git cherry or something

Also, how to exit vim, and how to insert in vim, and basically how on Earth did I end up in vim omg get me out

How to "unignore" files with git... Here is a nice and short way.

I would be responsible for 95% of hits coming from google search into the Tutorialpoint's html5 minimal template. Now I could easily type it in every time I set up a new page, but it is now a matter of extreme laziness I think.

This is stupid but g++ compiling filename and output order in the terminal. I've been doing it for four years now and still failing to remember.

ln -s [source] [destination] or ln -s [destination] [source] ?
find . -name [...] -exec grep '...' {} \;

And of course sed, awk and more generally shell syntax (if, loops, switch, etc).

How to exit vim.

How to spell maintenance.

As a non native english speaker:

slice()

vs

splice()

Usually, anything that is outside of my basic Git workflow.

Find a file in Linux. I know it involves "find" and "name" but I have to look up the exact syntax each time. (For reference, the sledgehammer version is find . -name testfile.txt from the root of the drive.)

How to type this: ¯\_(ツ)_/¯

PHP array_push and array_key_exists parameters order.

unzip a tar file especially with that different extensions .xz , .bz etc..

vim commands to cut,copy and paste

regex in python and other python builtins . Can't memorize the whole docs right ?

Updating the list of git remote branches. It doesn't refresh when you sync so it will continue to list remote branches that don't even exist anymore until you manually run the command below. (Which I had to google again to put in this comment.)

git remote update origin --prune

text-overflow: ellipsis

How to flush DNS cache on OSX

Setting firewall rules with iptables.

1. I always Google how to create a webpack configuration file.
   • You need to be a 🚀👨‍🔬 to configure it from memory.
2. Adding a style tag for CSS files 😝.

flexbox and grid with all their different attributes and values :/

My first choice was "Regex", but it seems you guys beat me to that choice.

So, without a shame I can say that everytime I search "how to insert an element at the end of another with jquery". Frigging append(), man.

How to git checkout a remote branch. I’m gonna try it it without googling

git remote add repoFork <url>
git fetch repoFork
git checkout —track repoFork/branch

I hope that’s right I just looked it up again yesterday

MySQL and PHP date formatting. Every time. What’s weekday again?

"How to do x in CSS" where x is anything

• CSS attributes
• Rails generators
• ActiveRecord queries
• Syntax for any function I don't use on a weekly basis

How to use grep and find.
Also when I write data = {} in Python, is this a set or a dict?

SQL syntax #ashamed.

Its vs It's

Vim commands.

Just...I can't even.

Everything! 🤪
But seriously, I think I do a lot of Googling (and looking at Documentation - same thing?) for things which are new or I'm uncertain of or if I'm working with an SDK like Firebase.
Is that the way I'm supposed to do it? 😂 I'd rather get things right first time rather than get it wrong and THEN Google. Sounds like the other things people Google are a lot more advanced. 😳

How to use "find ... -exec ..." correctly.

When I accidentally commit on master instead of a branch and I need to reset my master to match origin:

git reset --hard origin/master

The argument order to the various PHP array functions

The order of arguments for map/reduce/filter is JS. Was it (index, item) or (acc, index, item) or (item, index)....

The arguments for JavaScript's array.slice method. Every. Damn. Time.

In-place string substitution; usually performed on multi-gigabyte database dumps:

sed -i 's/STRING_TO_REPLACE/REPLACEMENT_STRING/g' reallybigdb.sql

how to undo $whatever in git

ruby hashes lol

Array.prototype.map() callback param order.

The order of arguments to the reduce callback or block in any language.

"github ssh-keygen example" :D

alias_method in Rails. Confusingly, the arguments are the opposite order to Kernel#alias. And the examples for both are terrible!

Exit vim

Selinux allow httpd

Yesterday was the first time I deleted a tag or branch (it was a tag) from a remote git repo without googling it first. Pretty proud of that.

Regex. Almost anything regex.

Git commands.

• Converting StdClass <-> Array in PHP -> I always forget 'True' as the second arg of json_decode()
• Git Commands
• Format for PHP date()
• Casting to a class in Python3

I always look up dd. Not because I don't remember the syntax, but because I am super respectful of its raw power to destroy my day if used wrong.

how to git ignore and how to discard current changes

How to delete a branch 😳

Last character of string :p

Change column values pandas

Regexp, python join array to string, empty solr core, ssh tunnel local/remote port...

All the good ones are taken so I'll add one I haven't found: Markdown syntax.

git commands

what are the order of arguments in short-syntax CSS like padding, margin...

Fixing "orphaned" users in SQL Server

CSS vendor --prefixes!
I refuse to memorize them. Hopefully one day we will not need them anymore.
Another classic is RegEx =/ =)

Bootstrap default mobile navigations 😭

Proper Regex syntax in the command line. "Wait I have to escape that?!"