What do you Google EVERY. SINGLE. TIME. and never just memorize?
Ben Halpern
Oct 19 '17
・1 min read
Classic DEV Post from Dec 10 '18
How to make a tar file...
I figured out how to remember it. To create tar, use
c
option and for extracting replacec
withx
==>$tar
will remain same for both Lol :) .tar -cvf filename.tar file/dir_path
&&tar -xvf filename.tar
.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
at least extracting is easy (say it in a german accent) tar -xzf "xtract ze files"
Thank you so much.
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
and -czf == 'compress ze files'
Even though as a German with decent English pronunciation this is a little bit insulting, I'll probably never forget this ever again. Thanks! 🙈
Isn't that for zipped tar files? -xzf = extract zipped (tar) file.
well what works for me is tar -xzvf "xtract ze vucking files"
No kidding that's how remember it
this...is actually brilliant! lol
regex
Regex kills me sometimes.
The same with me!! But I found VerbalExpressions (github.com/VerbalExpressions) to have solved it for me.
That is very good to know about.
I usually just go to regexr.com and trial-and-error the syntax until it matches what I want.
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
You could add a function to your .bashrc to make this easier:
Then (after restarting your terminal or typing
source ~/.bashrc
) typelistening 8080
to find out what process is blocking that port.How to properly write a Rails migration file.
Add a column? Huh? What???
Oh yeah. I always copy and paste from old files.
IIRC:
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:
List to array:
Clear as mud...
Helpful protip. I learned yesterday, that
list.toArray(new String[0])
is faster than the version with the explicit size given.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. :)
I always have to Google regex. Or copied old code.
Oh yeah that's a big one
Same here...
BTW, I knew someone must've been written about regular expressions when I read the title.. 😂
Me too!
Hahaaahaa
Same here. I can only remember $,,*,+ and /s /w. I always end up up googling an example and going from there.
I can never remember how it works either. I found this to be helpful, though! regexr.com/
I was just like that... but then I've found regex101.com/ and now, I'm almost proficiente writing regex!
regex101 is the single best resource I've ever found for regex.
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!
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
orString.prototype.match
in JS? What are the order of parameters inpreg_match
in PHP? What are the little parentheses things called in .NET, captures or groups?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:
It happens infrequently enough that I never bother to alias it or remember how to type it out. I just remember what to Google.
I could never remember "rails new myapp --database=postgresql" :|
Oh yes, I even googled and used this today because my service keeps stopping.
cant you just sudo service postgresql start ? :P
On Linux, yes. On OSX, no unfortunately.
I have postgres installed via homebrew. So I use
brew info postgres
to copy the start command :)I was gonna say this. Have bookmarked the stackoverflow post on this. :D
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 !
sed
andawk
and how to use them.I was helping someone with this earlier this year. Ended up creating a helper for it:
gist.github.com/Kunde21/3633e1e9ef...
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 fzfSuprised tldr didn't got mentioned.
It's a pretty neat tool to do this kind of things...
Best link I've seen all week. Heroic!!!!!
That's awesome! thanks
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!tar -xf filename
Read as
tar eXtract File filename
.Saw this on an SO answer and never had to google it ever again :)
Wow, I never thought of it.
Thanks :)
Saw a comment from above and it changed my life.
tar -xzf filename
xzf = "Xtract Ze Files!" (german accent)Excellent, noté that you may get ride of the dash.
I've got your back fam...
github.com/MichaelTd/libBash/blob/...
Everything git related
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"
How to delete a remote branch in git.
Oh boy, this gets me every. Single. Time.
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
I've been using Vim now for about 24 years. Primarily because I don't know how to quit.
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]
orln -s [destination] [source]
?find . -name [...] -exec grep '...' {} \;
And of course sed, awk and more generally shell syntax (if, loops, switch, etc).
Oh yeah, linking. Forgot about that one (obviously, since I need to Google it every time lol).
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.How to exit vim.
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...
Oh god why did they have the new guy making changes in prod you poor soul
How to spell maintenance.
This! Plus a few other words: convenient, conscience, accommodate. I'm not a native speaker ;).
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.
That's unneccessarrelly, but true.
As a non native english speaker:
vs
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.)Usually, anything that is outside of my basic Git workflow.
How to type this:
¯\_(ツ)_/¯
The best thing they ever added to Slack was the /shrug command.
Ha! Me too. I know to go straight to textfac.es
PHP array_push and array_key_exists parameters order.
this alone should tell you you need to use another language ;)
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.
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
easy to remember because it is like dried fruit!
Git, brew, and bundler all have some kind of
prune
flag so it's starting to stick for me.text-overflow: ellipsis
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 ?
vim...
Setting firewall rules with
iptables
.Ever heard of ufw?
webpack
configuration file.How to flush DNS cache on OSX
I literally added an alias to my ZSH config for this one
alias flushdns='sudo killall -HUP mDNSResponder'
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.
What gets me is when I'm switching between languages. Java uses
add
, Python hasappend
, and Ruby usespush
. But then some gem will useadd
.This is why I shamelessly use IDEs while everyone I work with uses vim.
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?
flexbox and grid with all their different attributes and values :/
"How to do x in CSS" where x is anything
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. 😳
Vim commands.
Just...I can't even.
ever play:
vim-adventures.com/
?
bonus tip: a lot of unix commands support vim keys by default. i.e. less and man
SQL syntax #ashamed.
Its vs It's
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.
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
How to use "find ... -exec ..." correctly.
How to use
grep
andfind
.Also when I write
data = {}
in Python, is this aset
or adict
?This can't be a Set
It's always a dictionary!
If you want an empty Set use:
P.S. it's handy to use the official Python REPL and type
type(youvariable)
;)The argument order to the various PHP array functions
The order of arguments to the
reduce
callback or block in any language.