Learn the basics and get started using bash and WP-CLI to manage repeatable task, complicated long running tasks and brighten up your terminal a bit.

1. Using The Command Line:
Bash And WP-CLI
NERDY GOODNESS 🙂
https://marcgratch.com | mgratchWordCamp Birmingham 2018

2. Why Use CLI?
• Repeatable Tasks
• Browsers Time Out
• Great For Mashing Commands Together
• All The Cool Kids Are Doing It
https://marcgratch.com | mgratchWordCamp Birmingham 2018

3. Getting Started
• Mac: Applications -> Utilities -> Terminal -> Done!
• Windows: Download Bash git-scm.com-> install -> Done!
• Also Windows: Configure Linux Subsytem
https://marcgratch.com | mgratchWordCamp Birmingham 2018

4. Navigating Commands
pwd Present Working Directory
ls List Directory
cd Change Directory
~ Home Directory
- Last Directory
../ Parent Directory
./ Current Directory
/ System Root
Anatomy of a Command
Syntax:
<command> [Options] [Parameter1…2]
HINT! Press `tab` to
autocomplete paths.
https://marcgratch.com | mgratchWordCamp Birmingham 2018

5. File/Directory Management Commands
touch Create a file
mkdir Make a Directory
cp Copy files/directories
mv Move files/directories
rm Remove a file
rmdir Remove a Directory
Recursively Removing Directories and Files:
rm -rf ~/trash_folder
BE CAREFUL… THERE IS NO UNDO!
> File Write to file
>> File Append to file
cat Read file
less Convert a string to pages
wc Word Count
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6. Useful Commands & Pipes
find Find files or folder
grep Search String
tail Get the last lines of a file
xargs Convert output to args
uniq | sort Sort and remove duplicates
Piping Commands:
find -name "*.sql" | uniq | sort | wc –l
Command returns STDOUT | command consumes STDIN returns STDOUT |…so on…
STDIN Output of a function
STDIN Input from a pipe
| Pipe, used to chain functions
https://marcgratch.com | mgratchWordCamp Birmingham 2018

7. A Little Beyond the Basics
apt-get Install packages
sudo Super User Do
curl/wget GET/POST Requests
pv mySQL progress bar
• git
• npm
• ponysay?
Useful Packages
Installing Packages:
Mac: Use Brew
Linux: apt-get
apt-get Command:
[sudo] apt-get install git
[sudo] apt-get install nodejs
[sudo] npm install json
pv Command:
pv file.sql | mysql -u -p <database>
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8. WP-CLI | mklife easier
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9. WP-CLI Requirement
• Bash
• PHP 5.3.29
• SSH (if not local)
Install Instructions
curl -O https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar
chmod +x wp-cli.phar
sudo mv wp-cli.phar /usr/local/bin/wp

10. Syntax:
wp <command> [subcommand] [Options]
Anatomy of a
WP-CLI Command
All WP-CLI Commands
https://developer.wordpress.org/cli/commands/
https://marcgratch.com | mgratchWordCamp Birmingham 2018

11. Some Useful Simple WP-CLI Commands
Deactivate all plugins:
wp plugin deactivate --all
Regenerate thumbnails:
wp media regenerate --yes
Update all plugins:
wp plugin update --all
Update all themes:
wp theme update --all #delete unused themes
Update WP Core:
wp core update
Clear the object cache:
wp cache flush
Delete all transients:
wp transient delete --all
https://marcgratch.com | mgratchWordCamp Birmingham 2018

12. Some Advanced CLI Info
• Bash is a complete language!
• Loops, Arrays, Conditionals
• https://gist.github.com/mgratch
https://marcgratch.com | mgratchWordCamp Birmingham 2018

13. More topics
Permissions chmod, chown, permission codes.
System Health df, du, top, htop
Task runners & package managers Grunt, Gulp, Webpack, composer, npm
https://marcgratch.com | mgratchWordCamp Birmingham 2018

14. Great Resources
wptavern.com wp-cli.org tommcfarlin.com
poststatus.com make.wordpress.org pippinsplugins.com
joshpress.net wordpress.tv carriedils.com
tuts+ wpchat.com carlalexander.ca
torquemag.io wpbeginner.com yoast.com
wpshout.com wpmayor.com gravitywiz.com
wplift.com chrislema.com webdevstudios.com
training.leftlogic.com javorszky.co.uk developer.wordpress.org
https://marcgratch.com | mgratchWordCamp Birmingham 2018