DEV Community

What do you Google EVERY. SINGLE. TIME. and never just memorize?

Ben Halpern on October 19, 2017

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...

Oscar • Jul 11 '18

Helpful protip. I learned yesterday, that list.toArray(new String[0]) is faster than the version with the explicit size given.

Lynne Tye • Oct 19 '17

I was about to write the same thing. How to vertically align elements... without using flex 😂

Sarah Chima • Oct 19 '17

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. :)

Ben Halpern • Oct 19 '17

Oh yeah that's a big one

Tiago Marques • Oct 20 '17

I was just like that... but then I've found regex101.com/ and now, I'm almost proficiente writing regex!

gustavo • Nov 2 '17

regex101 is the single best resource I've ever found for regex.

Miff • Nov 2 '17

It's funny in my case. I know enough regex to get by, but I generally need to google to find out how to actually apply it.

Do I need RegExp.prototype.test or String.prototype.match in JS? What are the order of parameters in preg_match in PHP? What are the little parentheses things called in .NET, captures or groups?

Andrew • Nov 2 '17

I had the same problem, until I found Rubular:

rubular.com/

Bonus tip: making a permalink will also save all the test cases used. Makes for an excellent inline comment!

Roger Paviani • Oct 20 '17

Same here...
BTW, I knew someone must've been written about regular expressions when I read the title.. 😂

Kwabena Bio Berko • Oct 19 '17

Me too!
Hahaaahaa

George Offley • Oct 20 '17

I always have to Google regex. Or copied old code.

Jens Genberg • Oct 20 '17

I can never remember how it works either. I found this to be helpful, though! regexr.com/

Reynaldo Jose Abreu • Oct 20 '17 • Edited

Same here. I can only remember $,^,*,+ and /s /w. I always end up up googling an example and going from there.

Ben Halpern • Oct 19 '17

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.

Galdin Raphael • Oct 19 '17

I have postgres installed via homebrew. So I use brew info postgres to copy the start command :)

lepinekong • May 25 '18

So did I then I realize how many precious minutes of my life I'm losing so I decided to buy a domain for 75 cents mycodesnippets.space :) I write things down little by little as soon as I need it the first time or I risk to never do it by lazyness !

Srikanth • Feb 11 '18

I was gonna say this. Have bookmarked the stackoverflow post on this. :D

Kaustav Banerjee • Oct 19 '17

cant you just sudo service postgresql start ? :P

shelby spees (she/her) • Aug 11 '18

On Linux, yes. On OSX, no unfortunately.

Kwaku Eshun • Oct 19 '17

Oh yes, I even googled and used this today because my service keeps stopping.

Amin Arria • Oct 19 '17

How to make a tar file...

damian • Oct 19 '17

at least extracting is easy (say it in a german accent) tar -xzf "xtract ze files"

Chrissy Wainwright • Oct 20 '17

and -czf == 'compress ze files'

Amin Mohamed Ajani • Oct 23 '17

well what works for me is tar -xzvf "xtract ze vucking files"
No kidding that's how remember it

Amin Arria • Oct 20 '17

That's a great way! Jajajaaj

But it's important to note that tar is smart enough to detect the format so I prefer the general tar -vxf

Florian Reuschel • Jun 19 '18

Even though as a German with decent English pronunciation this is a little bit insulting, I'll probably never forget this ever again. Thanks! 🙈

dean • Oct 20 '17

Thank you so much.

Jonas Gauffin • Jun 15 '18 • Edited

Isn't that for zipped tar files? -xzf = extract zipped (tar) file.

tbodt • Oct 21 '17 • Edited

B. Agustín Amenábar Larraín • Jun 25 '18

I threw this one at a dev I used to work with. He answered instantly, he could have disarmed 2 bombs with that speed.

Instant respect gained

Sanjayshr • Oct 23 '17 • Edited

I figured out how to remember it. To create tar, use c option and for extracting replace c with x ==> $tar will remain same for both Lol :) . tar -cvf filename.tar file/dir_path && tar -xvf filename.tar.

brandonhowkins02 • Oct 24 '20 • Edited

Hey, I also want to make a tar file for my website name:Lenny face. Let me know if the given suggestions works for you!

Dave Jacoby • Oct 19 '17

sed and awk and how to use them.

Tony • Oct 20 '17

Creating SSH Keys

Martin Kiesel • Jun 4 '18

I just ssh-k ↑ in zsh and just list all previous key generation commands or if I am not sure what I am looking for I use fzf

# fh - repeat history
fh() {
  print -z $( ([ -n "$ZSH_NAME" ] && fc -l 1 || history) | fzf +s --tac | sed 's/ *[0-9]* *//')
}

Chad Kunde • Apr 28 '18

I was helping someone with this earlier this year. Ended up creating a helper for it:

gist.github.com/Kunde21/3633e1e9ef...

Mathieu PATUREL • Oct 19 '17

Suprised tldr didn't got mentioned.

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

ImTheDeveloper • Oct 20 '17

Best link I've seen all week. Heroic!!!!!

@ScottFred • Apr 26 '18

That's awesome! thanks

Aidan Harding • Oct 20 '17

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

Andy Zhao (he/him) • Oct 20 '17

And centering things. Completely clueless every time.

Andrew • Nov 2 '17

here's a handy multiple choice questionnaire!

howtocenterincss.com/

Michael Minshew • Apr 9 '18

holy crap, whoever made this site needs a medal. Great recommendation!!!

z0al • Oct 19 '17

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

dean • Oct 20 '17 • Edited

Saw a comment from above and it changed my life.

tar -xzf filename xzf = "Xtract Ze Files!" (german accent)

ErwanDavid • Oct 21 '17

Excellent, noté that you may get ride of the dash.

Galdin Raphael • Oct 19 '17 • Edited

tar -xf filename

Read as tar eXtract File filename.
Saw this on an SO answer and never had to google it ever again :)

z0al • Oct 20 '17

Wow, I never thought of it.

Thanks :)

Igal Tabachnik • Oct 20 '17

How to delete a remote branch in git.

ItsASine (Kayla) • Oct 21 '17

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

Eljay-Adobe • Jun 11 '18

I've been using Vim now for about 24 years. Primarily because I don't know how to quit.

Bart Karalus • Oct 20 '17

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.

Paula • Oct 19 '17

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.

Kevin Le • Oct 19 '17

regex

Stefan Hecker • Oct 20 '17

The same with me!! But I found VerbalExpressions (github.com/VerbalExpressions) to have solved it for me.

Kevin Le • Oct 23 '17

That is very good to know about.

Ferocit • Nov 2 '17

I usually just go to regexr.com and trial-and-error the syntax until it matches what I want.

Ryan Haber • Oct 20 '17

Regex kills me sometimes.

Frederik 👨‍💻➡️🌐 Creemers • Oct 19 '17

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

Palle • Oct 21 '17 • Edited

You could add a function to your .bashrc to make this easier:

listening() {
    lsof -n -iTCP:$1 | grep LISTEN
}

Then (after restarting your terminal or typing source ~/.bashrc) type listening 8080 to find out what process is blocking that port.

Loïc Giraudel • Oct 20 '17

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).

Šimon Let • Jun 17 '18

I got a good way to remember argument order for ln:
Destination is optional so it must go second.
By default ln creates a link with the name of the source in the current directory.

Elliot Derhay • Jun 16 '18

Oh yeah, linking. Forgot about that one (obviously, since I need to Google it every time lol).

Andy Zhao (he/him) • Oct 19 '17

How to properly write a Rails migration file.

Add a column? Huh? What???

Ben Halpern • Oct 19 '17

Oh yeah. I always copy and paste from old files.

Ukaza Perdana • Dec 30 '17 • Edited

IIRC:

rails g migration AddStuffToTableName new_column1:integer new_column2:text #etc. etc.

Sourav Ghosh • Oct 20 '17

How to exit vim.

Michael Whitis • Oct 20 '17

Many moons ago, at one of my first jobs, I got myself in trouble with this. I was editing something in prod without knowing how to save or exit. I was a windows nt guy mostly. So, like one does, I hard-rebooted the server instead of asking for help... After the dust cleared, my boss made me sit at a keyboard for over an hour launching vim and learning how to at least save and exit. :) I have :wq, :q,:q! burned into my muscle memory to this day...

shelby spees (she/her) • Aug 11 '18

Oh god why did they have the new guy making changes in prod you poor soul

ImTheDeveloper • Oct 19 '17

Everything git related

Harry Wood • Apr 24 '18

Yeah. For some reason I really find some git procedures harder to memorise than others. It's ludicrous the number of times I've googled "git unadd a file" and "git reset branch to remote"

George Offley • Oct 20 '17

How to spell maintenance.

Albrecht Scheidig • Oct 25 '17

That's unneccessarrelly, but true.

Jim Schubert • Feb 10 '18

I don't have to Google the spelling, but I'd say 99% of the time I type "valud". I say it correctly as "val-id" and only mistype because of the QWERTY keyboard layout. This is the only word that I consistently type incorrectly. It's not a speed thing (like "teh"), because it happens when typing slowly as well. I've been typing for a really long time and I'm beginning to think my brain just thinks this is a funny prank.

Angelika Cathor • Oct 20 '17

This! Plus a few other words: convenient, conscience, accommodate. I'm not a native speaker ;).

Robin Goupil • Oct 22 '17

As a non native english speaker:

slice()

splice()

Rob Cameron • Oct 19 '17 • Edited

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.)

Brett Stevenson • Oct 19 '17

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

Gilberto Alexandre dos Santos • Oct 20 '17

PHP array_push and array_key_exists parameters order.

Erebos Manannán • Oct 20 '17

this alone should tell you you need to use another language ;)

Daan Wilmer • Nov 5 '17

Argument orders in all array functions in PHP for me. That's just horrible. VSCode gives hints though, so that helps. I still have to look up the exact names of functions regularly, though.

Anton Linevych • Mar 22 '18 • Edited

How to type this: ¯\_(ツ)_/¯

Ben Halpern • Mar 22 '18

Ha! Me too. I know to go straight to textfac.es

Den McHenry • Jun 16 '18

The best thing they ever added to Slack was the /shrug command.

Alejandro • Oct 21 '17

text-overflow: ellipsis

Aswath KNM • Oct 20 '17

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 ?

Aaron Santos • Dec 22 '17

vim...

Kasey Speakman • Oct 19 '17

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

shelby spees (she/her) • Aug 11 '18

Git, brew, and bundler all have some kind of prune flag so it's starting to stick for me.

Oleksandr • Feb 13 '18

easy to remember because it is like dried fruit!

Javier Guerra • Oct 23 '17 • Edited

How to flush DNS cache on OSX

Matt Durr • Feb 10 '18

I literally added an alias to my ZSH config for this one

alias flushdns='sudo killall -HUP mDNSResponder'

Sung M. Kim • Apr 8 '18 • Edited

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

Christopher McClellan • Oct 20 '17

Setting firewall rules with iptables.

Syntactic Sugar • Feb 10 '18

Ever heard of ufw?

Jess Lee • Nov 16 '17

RAILS MIGRATION

Jonathan Solis • Oct 20 '17 • Edited

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

juankOrtiz • Apr 12 '18

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.

shelby spees (she/her) • Aug 11 '18 • Edited

What gets me is when I'm switching between languages. Java uses add, Python has append, and Ruby uses push. But then some gem will use add.

This is why I shamelessly use IDEs while everyone I work with uses vim.

Marco Alka • Oct 20 '17

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

David Vincent Gagne • Oct 21 '17

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

Hudson Burgess • Oct 20 '17

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

Sam Jarman 👨🏼‍💻 • Oct 21 '17

Its vs It's

Jeroen Jacobs • Oct 20 '17

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

Sakib Hadžiavdić • Oct 19 '17

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

Antonio Radovcic • Oct 20 '17

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

Dylan • Jun 15 '18

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. 😳

John Best • Oct 19 '17

SQL syntax #ashamed.

Florian Rohrer • Oct 20 '17

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

z0al • Oct 23 '17

This can't be a Set

data = {}

It's always a dictionary!
If you want an empty Set use:

data = set()

P.S. it's handy to use the official Python REPL and type type(youvariable) ;)

Ryan LaBouve • Oct 21 '17

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

Jeremy Mikkola • Oct 20 '17

The argument order to the various PHP array functions

Brian Hanna • Oct 21 '17

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

Yechiel Kalmenson • Oct 19 '17

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

Max Antonucci • Oct 20 '17

Vim commands.

Just...I can't even.

Andrew • Nov 2 '17

ever play:

vim-adventures.com/

bonus tip: a lot of unix commands support vim keys by default. i.e. less and man

Pablo Urcola • Jun 14 '18

how to undo $whatever in git

GA • Oct 20 '17

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.

Cadell • Oct 20 '17

ruby hashes lol

Said Arab • Oct 20 '17

Selinux allow httpd

RobK • Dec 23 '17

"github ssh-keygen example" :D

Elliot Derhay • Jun 16 '18

Array.prototype.map() callback param order.

Nick Campbell • Jun 14 '18

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

Aaron Schlesinger • Jul 18 '19

How to use ln. ln $LINK_NAME $TARGET or ln $TARGET $LINK_NAME? I can never remember

Vincent Grovestine • Oct 23 '17

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

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

Jorge Quijano • Jun 16 '18

Exit vim

Jonathan Clem • Nov 2 '17

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

gustavo • Nov 2 '17 • Edited

How to remove password expiration in Oracle. It always happens at the worst possible time, but not often enough to have it memorized.

Ryan Haber • Oct 20 '17

Any switches I don't use often with linux commands.

Den McHenry • Jun 16 '18

IIS error messages on the yellow screen of death (YSOD)

Jonathan Völkle • Jun 16 '18

git commands

tarzan212 • Oct 20 '17

How to set up a docker container. Got to look this up every single time..

Nana • Oct 21 '17

Grep recursively for a pattern

M.H. • Jun 14 '18

Converting UNIX timestamp to Excel date-time format with the correct timezone.

Tyler Bodway • Jun 14 '18

Ruby .strftime() formats

Jake Casto • Oct 21 '17

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

liverlive • Oct 20 '17

Git hard pull !!

Andrew Marin • Oct 20 '17

parameters for php date()

ErwanDavid • Oct 21 '17 • Edited

Tricky regex... empty a solr core... Python join array to string... Ssh tunnel local and remote port

LuisPa • Oct 20 '17

I recommend devdocs.io

Offline docs! ⚡️

Albrecht Scheidig • Oct 25 '17

Starting / stopping services in linux. And it changes far to often.

Shi Ling • Mar 27 '18

How to kill a process running on some port.

Elarcis • Nov 2 '17

Wether I'm looking for Javascript's call() or apply().

Idan Arye • Mar 25 '18

How to use HTTP client. I'm a polyglot programmer and I just can't memorize this in any of the languages I know...

Felippe Regazio • Apr 9 '18

man, i have a good one for that. put a before with height 100%, display inline block and vertical align middle on your holder div. vertical align middle and display inline block to the elements.

Ryan Silva • Nov 2 '17

Javascript: substr vs substring. One takes start,end; other takes start,length. Would have been simpler if they only included one :(

Kamal Zairig • Nov 22 '17

How to ignore chmod changes to files in Git :)

Rafael Acioly • Nov 22 '17

How to stop tracking a file on git

Avi Kaminetzky • Jun 15 '18

"delete solr data", to clear data in solr core.

Adrián González • Nov 22 '17

Python loop with condition

LuisPa • Oct 20 '17

Mixins React example.

Aaron Santos • Dec 22 '17

Delete in SQL Server...

Nancy Deschenes • Dec 31 '17

The order of the parameters in the function passed to $.each().

Elliot Derhay • Jun 16 '18

How to list remote git branches.

Ali Mujthaba • Jun 16 '18 • Edited

how to git ignore and how to discard current changes

David J Eddy • Oct 30 '17

docker log truncation

Dave Stevenson • Nov 2 '17

Glad I’m not alone with this one. Been doing rails since pre-1.0 and still google “active record migration” every time.

Dazz Knowles • Nov 2 '17

Updates with joins syntax in SQL. Always get the SQL Server and MySQL versions muddled.

Lucas Meine • Nov 23 '17

This command: su -s /bin/bash apache
On this link: linuxquestions.org/questions/linux...

Chad Smith • Mar 27 '18

Current UTC time. I will never remember what my time is in UTC time.

Sammy Israwi • Dec 31 '17

Switch statement format. I always forget where the {} and the () go.

And of course Regex - because memorizing Regex notation and rules is a waste of energy

Daniel Kassen • Oct 23 '17

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

Guid75 • Jun 16 '18

For a long time it was the openssl sub commands, for instance to dump the text version of a certificate. :-)

Phillip Smith • Jun 12 '18

Iterating over keys in an object (#javascript)

Kunal Dargan • Feb 11 '18

How to install opencv using pip !

imperatormk • Feb 10 '18

How to redirect to URL with JS.

Allan Kibet • Feb 10 '18

How to set the php errors on

Anton • Oct 26 '18

How to compile from source code on linux.

Aga Zaboklicka • Feb 10 '18

I still can comprehend why, but:

rm -rf mydir

Darran Boyd • Oct 20 '17

How to grep a text file without comments (#) and blank lines!

flinkflonk • Apr 28 '18

How to rescan the scsi bus. Probably not a dev thing to do, but certainly a devops thing.

Rohit Awate • May 25 '18

Which of Java's string manipulation classes, StringBuffer or StringBuilder is the thread-safe one. I'm gonna have to Google that again.

Buffer! That's the one.

Chad Windham • Jun 12 '18

Most things sadly...

Shilpa Jain • May 11 '18

How to align div to the center. CSS. Every. Single.Time.

Brian Gallagher • May 29 '18

Date formats. SQL/JS/PHP all format dates differently and each one has different placeholders. I can never remember them. Ever.

Crashy • Jun 14 '18

How to use fstream. 14 years doing c++ and still cannot open a file without looking at doc.

ErwanDavid • Oct 21 '17

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

Wilfredo Pérez • Oct 20 '17

Git commands.

No dab no life • Oct 20 '17

Python's list comprehensions

Me, myself, and Irenne • Oct 19 '17 • Edited

Great question, just need to firefox it. Definitely, will reflect on the question.

Dwi purnomo • Oct 20 '17

SQL query

Anand B Pillai • Jun 15 '18

How to disable IPV6 on Linux
Almost anything got to do with OpenSSL!
How to cleanup docker ghost and dangling images

Oreoluwa Ogundipe • Oct 20 '17

Bootstrap default mobile navigations 😭

salmanjawed98 • Oct 20 '17

Last character of string :p

Leandro Bighetti • Oct 20 '17

mietschuldenfreiheitsbescheinigung

George • Oct 20 '17

Java decompilers/deobfuscator even though I have my own written

Daniel Waller (he/him) • Oct 20 '17

Regexes, adding permissions in Android Manifest, how to update npm

Kostas Setzas • Nov 4 '17

Reset and revert on a git commit...

Richard Yhip • Apr 29 '18

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

Ghost • Oct 23 '17

How to save and quit in vim

Christopher C. Johnson • Oct 20 '17

Some git commands and a lot of CSS stuff.

Ugo Albarello • Oct 21 '17

Fixing "orphaned" users in SQL Server

Ben Hemphill • Oct 21 '17

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.

Thomas Mayer • Oct 20 '17 • Edited

How to temporarily disable restraints in SQL and re-enable them.

OK, not really Googleing it, I have bookmarked the answer

Paul McCarthy • Oct 20 '17

IIS HTTP_HOST redirects, most regex, git beyond the basics.

Adnan Rahić • Oct 21 '17

Git revert. No chance to ever remember that.

Spyros Mandekis • Oct 20 '17

Anything related to the nc, telnet, iptables tools

Bustanil Arifin • Oct 20 '17

Almost every javascript library API...

Rodrigo Amaro • Oct 20 '17

When "gitignore is not ignoring" some file, there is always a line that I need to check to delete all the files from cache

Carl Flor • Oct 20 '17

How to revert my local branch to be exactly like its remote counterpart.

git reset --hard HEAD

Tiago Marques • Oct 20 '17

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

Spyros Mandekis • Oct 20 '17

mnemonic: it's clockwise starting from the top

India Amos • Oct 21 '17

Or, the more fun mnemonic I learned years ago: TRouBLe!

Tiago Marques • Oct 23 '17

Yeah, I was thinking about this discussion another day, and I remembered this mnemonic... But damn, when I need to use, I Forget about it 😅
But thanks to both of you guys!

IsaacLeimgruber • Oct 20 '17

Change column values pandas

Eduardo Gómez Vásquez • Oct 20 '17

How to delete a branch 😳

Jason C. McDonald • Oct 20 '17

Regex. Almost anything regex.

Matt Ellen-Tsivintzeli • Oct 20 '17

What the trim function is called in python

Juanjo Salvador • Oct 20 '17

Some CSS styles, mostly.

KhoPhi • Oct 20 '17 • Edited

Installing NodeJS and having npm install global packages outside default folder.

Jason Walzak • Oct 20 '17

how to use make on the command line.

i have a problem with my wifi and regularly have to reinstall the drivers I forget every time and I don't have wifi, so it's a pain in the butt.

LuisPa • Oct 20 '17

How to exit vim.

Ajina Slater • Oct 22 '17

simple_form methods. I'm always at the readme, never bookmarked.

And I still think "I really need to bookmark this" every time.

Abdul Malik Ikhsan • Dec 31 '17

substr or substring start from 0 or 1 in database and programming language specific

Max Antonucci • Mar 18 '18

How to cut and paste lines in VIM. I do this all the time when rebasing but can never remember the commands. I've just bookmarked the top result from each search for quick reference at this point.

Juan Julián Merelo Guervós • Nov 19 '17

R commands. ggplot2 options. Every single little thing in that language. I stopped learning at the <- for assignment.

Jorge Araya • Nov 23 '17

Memory is not needed when you have your technical notebook for annotations :) (I have mine using org-mode)

Trisha Salas • Dec 3 '17

CSS Shapes.
css-tricks.com/examples/ShapesOfCSS/

Bernhard Döbler • Feb 10 '18

With how many 'm's do I write git amend?

George Offley • Feb 10 '18

The word "lieutenant"

And print statements for various languages.

Yann Rabiller • Apr 14 '18

Writing an Apache/Nginx configuration file.

Theofanis Despoudis • May 29 '18 • Edited

How to use grep, sed or make

Karolis Ramanauskas • Jun 5 '18

How to restart nginx 🤷‍♂️

Gabriel Magalhães dos Santos • Jun 14 '18

How to vertically center a div for all browsers

pranay rauthu • Jul 26 '18

Slice vs splice in JavaScript

James Audry Spencer • Nov 22 '17

MetaDave 🇪🇺 • Nov 13 '17

Named captures in Ruby regex

Gawetaner • Oct 20 '17

Objective-C block Syntax, i can‘t memorize it and i don‘t know why.

kaiser shahid • Mar 21 '18

all sorts of PHP functions =/

ihosely • Dec 23 '17

.gitignore is not working

adnanisajbeg • Dec 30 '17

How to close vim...

Anthony Maldarelli • Nov 2 '17 • Edited

slice vs splice and css gradient syntax

Guillermo Liss • Oct 20 '17

CSS media queries !

Salazar • Oct 21 '17

Everything related to timestamps and date formatting.

Shubham Sharma • Dec 17 '19 • Edited

Just to be sure, I google git commands quite often. Most probably because for each command my mind has given it a custom-name. So it kind of mixes up. LOL

0x3d • Oct 19 '17

Timestamp converter (instead of bookmarking one or using some CLI tool/$ScriptingLanguage)
How to set Duckduckgo as default search engine (only to annoy BigBrother :))