Command Line 101
![](https://s3.amazonaws.com/media-p.slid.es/uploads/150316/images/1540508/ezgif-com-crop.gif)
pwd
$ pwd
Print Working Directory
ls
$ ls
./ ../ example.txt hobbit.txt theme/
$ ls -alh
total 48
drwxr-xr-x@ 5 vitaldesign 501 170B Jun 23 15:45 ./
drwx------+ 11 vitaldesign 501 374B Jun 25 16:08 ../
-rw-r--r--@ 1 vitaldesign 501 1.3K Jun 23 15:26 example.txt
-rw-r--r--@ 1 vitaldesign 501 19K Jun 23 15:29 hobbit.txt
drwxr-xr-x@ 28 vitaldesign 501 952B Jun 23 15:45 theme/
List Files
cd
$ pwd
/Users/vitaldesign/Desktop/bash101
$ cd theme
$ pwd
/Users/vitaldesign/Desktop/bash101/theme
Change Directory
cd
$ cd ..
Change Directory
$ cd -
$ cd ~
$ cd /
Move up one directory
Move back to last directory
Move to user's home directory
Move to server's root directory
Paths
$ find . -name "wp-config.php"
.
Current Directory
Paths
$ find / -name "wp-config.php"
/
Server Root
$ find /home/madeb9/public_html -name "wp-config.php"
Paths
$ find ~ -name "wp-config.php"
~
User Home
$ find ~/public_html -name "wp-config.php"
cp
$ cp example.txt example-copy.txt
Copy
$ cp example.txt /home/user2/public_html/example-copy.txt
mv
$ mv example2.txt theme/example2.txt
Move
Rename
$ mv example.txt example-renamed.txt
rm
$ rm example3.txt
Remove
Remove Directory
$ rm -rf example
mkdir
$ mkdir foo
Make Directory
touch
$ touch foo
Create File
nano
Text Editor
![](https://s3.amazonaws.com/media-p.slid.es/uploads/150316/images/1527701/Screen_Shot_2015-06-25_at_4.31.14_PM.png)
cat
$ cat long.txt
Concatenate and Print File
head
$ head long.txt
Display first part of a file
$ tail -n 5 long.txt
$ tail long.txt
$ head -n 3 long.txt
tail
Display last part of a file
less
$ less long.txt
Display File Contents, Paginated
find
$ find . -name "*.js"
Find all files with .js extension
$ find . -type f -perm 755
Find all files with 755 permissions
$ find . -name respond.js
Find file
grep
$ grep bomp example.txt
Global Regular Expression Print
$ grep --color=auto bomp example.txt
$ grep "bomp bah bomp" example.txt
grep
$ grep -nis bomp example.txt
Global Regular Expression Print
$ grep -rnis hex2rgb *
>
$ grep -nis bomp example.txt > results.txt
Redirect Output
|
$ mysqldump <options> | gzip > example.sql.gz
Pipe Output
man
$ man find
Manual (Help!)
Shortcuts
~/.bash_profile
SSH
$ ssh -p 2222 root@host.servername.com
SSH
Connect
SSH Keys
SSH Keys
Generating Keys
$ ssh-keygen
SSH Keys
Adding to Remote Server
Append to authorized_keys (file already exists)
$ cat ~/.ssh/id_rsa.pub | ssh user@123.45.56.78 'umask 077; cat >> ~/.ssh/authorized_keys'
Create .ssh/authorized_keys and add key (brand new server)
$ cat ~/.ssh/id_rsa.pub | ssh user@123.45.56.78 "mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys"
SSH Keys
Adding to Remote Server (cPanel)
$ pbcopy < ~/.ssh/id_rsa.pub
$ cat ~/.ssh/id_rsa.pub
Mac
Windows
Copy key to clipboard
SSH Keys
Adding to Remote Server (cPanel)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/150316/images/1529545/cPanel_-_SSH_Access.jpg)
SSH Keys
Adding to Remote Server (cPanel)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/150316/images/1529547/cPanel_-_SSH_Access_2.jpg)
SSH Keys
Adding to Remote Server (cPanel)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/150316/images/1529548/cPanel_-_SSH_Access_3.jpg)
SSH Keys
Adding to Remote Server (WHM/root user)
![](https://s3.amazonaws.com/media-p.slid.es/uploads/150316/images/1529893/WebHost_Manager___server.jpg)
Follow same procedure as cPanel, starting here:
SSH
Configuration
$ ssh dev
![](https://s3.amazonaws.com/media-p.slid.es/uploads/150316/images/1529434/464927.jpg)
SSH
Configuration
Host nickname
Hostname server.example.com
IdentityFile ~/.ssh/id_rsa
User username
Port 1234
$ ssh nickname
~/.ssh/config
SSH Keys
Adding to GitHub
![](https://s3.amazonaws.com/media-p.slid.es/uploads/150316/images/1540523/Screen_Shot_2015-07-01_at_12_19_58_AM.jpg)
sudo
Super User Do
Allows any user to run commands as root
$ sudo nano /etc/httpd/conf/httpd.conf
Re-run last command with sudo
$ sudo !!
Resources
Tools
iTerm2
Terminal App Replacement
Command Line 101
By Adam Walter
Command Line 101
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