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This section is all about helpful BASH commands and can be used as a cheatsheet for BASH.

1. File and Directory Management

Commands to manage, view, and manipulate files or directories:

ls, ls -lah, ls -alh, ls -l, ls -la, -*lah: Variations for listing files and directories with details.
mkdir plugins.off: Creates a directory.
mv plugins plugins.off, mv plugins.off plugins, mv .htaccess .htaccess.off: Moves or renames files and directories (e.g., for disabling or re-enabling).
rm -rf plugins.off: Recursively deletes a directory and its contents (use with caution).
pwd: Displays the current working directory.
find . -type d -exec chmod 755 {} \;: Sets directory permissions to 755.
find . -type f -exec chmod 644 {} \;: Sets file permissions to 644.
nano .htaccess, nano wp-config.php: Edits configuration files with the nano text editor.

2. Navigation

Commands for moving through the file system:

cd ..: Moves up one directory level.
cd logs, cd www.testing.com/, cd https, cd ~/logs/, cd ~: Navigates to specific directories.
cd wp-content/, cd testing.com, cd platformpurpose.com: Navigates between other specified directories.
exit: Ends the current session.

Commands for inspecting logs and configurations:

tail error.log, tail ~/logs/www.testing.com/https/error.log: Views the end of a log file.
tail -n 30 ~/logs/www.testing.com/https/error.log: Displays the last 30 lines of a log file.
tail -f ~/logs/www.testing.com/https/error.log: Continuously monitors updates to a log file.
cat error.log, cat plugins error.log, cat ../logs/bobsmith.com/https/error.log: Displays the contents of specific files.
grep Fatal error.log, grep -r "eval" ../bobsmith.com: Searches for patterns within files or directories.
less index.php, head index.php, stat index.php: Views file content and attributes.
nano LocalSettings.php, nano /home/bobsmith/...: Opens files for editing.

Commands for modifying permissions and ownership of files and directories:

find var generated vendor pub/static pub/media app/etc -type f -exec chmod g+w {} +: Grants group write permissions for files.
find var generated vendor pub/static pub/media app/etc -type d -exec chmod g+ws {} +: Grants group write and setgid permissions for directories.
chown -R :www-data .: Recursively changes ownership of files to a specific group (www-data).
chmod u+w .htaccess, chmod u+w index.php: Grants write access to files.
chmod u .htaccess, chmod u-w .htaccess: Modifies user permissions for a specific file.

Commands specific to managing PHP, Magento, and MediaWiki:

php update.php, php maintenance/update.php: Executes MediaWiki update scripts.
php bin/magento setup:static-content:deploy: Deploys static content for Magento.
php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');": Downloads the Composer installer script.
php composer-setup.php: Installs Composer.
php bin/magento cache:clean: Clears Magento cache.
php -i | grep HTTP_AUTHORIZATION: Fetches specific PHP configuration details.
bin/magento setup:install [config options]: Installs Magento with the specified options.
tar xvzf mediawiki-1.39.1.zip -C /home/... --strip-components=1: Extracts files to a specific directory.
cat phprc: Displays PHP configuration details.

Commands for managing dependencies with Composer:

composer create-project --repository-url=https://repo.magento.com/ magento/project-community-edition /home/bobsmith/luma.testing.com/: Creates a new Magento project.
composer install: Installs project dependencies.

Commands for interacting with databases:

mysql -u craftoftesting -p: Connects to a MySQL database.
SHOW DATABASES;: Lists available databases.
wp db export ~/backup\`date +"%d-%m-%Y"-%T\`.sql: Exports a database to a timestamped backup file.

Commands for maintaining and debugging WordPress installations:

wp plugin list, wp plugin deactivate wp-malware-removal: Lists or deactivates plugins.
wp theme list, wp theme activate rational-start: Lists or activates themes.
wp rewrite flush --hard: Resets WordPress rewrite rules.
wp core verify-checksums, wp doctor check --all: Validates WordPress core files and performs health checks.

Commands for finding and cleaning up files:

grep -rh "bobsmith" ../bobsmith.com | sort | uniq: Searches for unique occurrences of a keyword.
grep -rl "PhP|php5|PHP5" ../platformpurpose.com | sort | uniq | xargs rm -f: Finds and deletes specific files matching a pattern.

Commands for monitoring system resources and activity:

Other helpful commands: