Git SSH Keys, Terminal Commands and Basic Git Commands
Generating an SSH key
After creating an SSH key, and adding it to your GitHub account you will not have to do it again! You will be prompted for your SSH key passphrase later on for security reasons.. So don't forget that passcode!
If you do that's alright, you will have to create a brand new key and add it to your GitHub account again.
Go to the beginning of the line you are currently typing on
Ctrl + E
Go to the end of the line you are currently typing on
Ctrl + U
Clear the line before the cursor
Ctrl + K
Clear the line after the cursor
Ctrl + W
Delete the word before the cursor
Ctrl + T
Swap the last two characters before the cursor
Esc + T
Swap the last two words before the cursor
Ctrl + R
Lets you search through previously used commands
Ctrl + L or Command + K
Clears the Screen
Ctrl + C
Kill whatever you are running
CORE COMMANDS
Key/Command
Description
cd
Home directory
cd [folder]
Change directory
cd ~
Home directory, e.g. 'cd ~/folder/'
cd /
Root of drive
ls
Short listing
ls -l
Long listing
ls -a
Listing incl. hidden files
ls -lh
Long listing with Human readable file sizes
ls -R
Entire content of folder recursively
open [file]
Opens a file
open .
Opens the directory
top
Displays active processes. Press q to quit
nano [file]
Opens the Terminal it's editor
pico [file]
Opens the Terminal it's editor
q
Exit
clear
Clear screen
COMMAND HISTORY
Key/Command
Description
history n
Shows the stuff typed - add a number to limit the last n items
ctrl-r
Interactively search through previously typed commands
![value]
Execute the last command typed that starts with 'value'
!!
Execute the last command typed
FILE MANAGEMENT
Key/Command
Description
touch [file]
Create new file
pwd
Full path to working directory
..
Parent/enclosing directory, e.g.
ls -l ..
Long listing of parent directory
cd ../../
Move 2 levels up
.
Current folder
cat
Concatenate to screen
rm [file]
Remove a file, e.g. rm [file] [file]
rm -i [file]
Remove with confirmation
rm -r [dir]
Remove a directory and contents
rm -f [file]
Force removal without confirmation
rm -i [file]
Will display prompt before
cp [file] [newfile]
Copy file to file
cp [file] [dir]
Copy file to directory
mv [file] [new filename]
Move/Rename, e.g. mv -v [file] [dir]
DIRECTORY MANAGEMENT
Key/Command
Description
mkdir [dir]
Create new directory
mkdir -p [dir]/[dir]
Create nested directories
rmdir [dir]
Remove directory ( only operates on empty directories )
rm -R [dir]
Remove directory and contents
HELP
Key/Command
Description
[command] -h
Offers help
[command] --help
Offers help
[command] help
Offers help
reset
Resets the terminal display
man [command]
Show the help for 'command'
whatis [command]
Gives a one-line description of 'command'
Git Commands
Creating GitHub repos, saving changes to your github, and accessing folders and files through terminal is part of every Developer's essential tools.
Creating your First Repository
#navigate to the folder you want to put on GitHub
$ touch README.md #this creates a file called README.md this is a markdown file. Developers use this for a place to put instructions, a description about the project you can scroll to the top of this page, hit raw and see exactly how I wrote this MarkDown file
$ git add .#this adds everything changed in this repo from local to staging
$ git commit -m 'first commit'#this commits everything in staging to be ready to be pushed into GitHub it's important to include a -m (message) with this commit because it's for you and future developers to understand what happened during this commit. What changes happened at this point in time
$ git remote add origin [email protected]:yourGitHubUserName/yourRepoName.git #this links your github repo to your local folder on your machine.
$ git push origin master # this pushes from staging to the repo on github
Whenever you wanna add changes to your repository online
$ git add .
$ git add -u #when you have deleted a local file and you want to remove from your repository
$ git commit -m 'what has changed'
$ git push origin
When you want to get someone else's repo onto your machine
# first fork the repo you want to work on, forking will take the repo, and make an exact copy onto your personal GitHub account
$ git clone [email protected]:yourUsername/yourReponame.git
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