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Useful Commands: Shell Scripting

Find directories that have a particular plugin

Use in your project directory containing WordPress sites. Writes results to the specified file.

find . -path "*/wp-content/plugins/wordpress-seo" -print | sed -E -e "s#\.\/([^\/]*)\/.*#\1#" > sites_with_yoastseo.txt

Find all site repositories

Change the -depth param to match your project structure. My hierarchy is sites/sitename/SiteRepo/.git, so it outputs all “SiteRepo” dirs when in my “sites” directory.

find . -depth 3 -name '.git' -execdir pwd \;

Update all site git repositories

See Find all site repositories. Define git aliases for better, custom results. Just pull the current branch.

find . -depth 3 -name '.git' -execdir git pull \;

Switch to master, fetch pruned branches, and pull. Note that this will not work for repositories without a ‘master’ branch, ie. repos using ‘main’ as the default.

find . -depth 3 -name '.git' -execdir git checkout master \; -execdir git fetch --prune \; -execdir git pull \;

Refactoring Code

Useful when copying code from another project. Using grep is much more efficient than using find.

grep -FRl --include='*.php' --exclude='*/node_modules/*' 'Purple_Turtle_Creative' . | xargs sed -i '' -e 's#Purple_Turtle_Creative#PTC_Theme#g'

Refactoring a PHP namespace

Be super careful with your search string by replacing the entire namespace line like namespace PTC_Theme\Something; rather than a prefix like namespace PTC.

Refactoring SCSS namespace to function format

Refactor SCSS namespace format colors.$grey-darker to function format color(grey-darker).

grep -FRl --include='*.scss' --exclude='*/node_modules/*' 'colors.$' /path/to/assets/styles/scss | xargs sed -i '' -E 's#colors.\$([a-z\-]*)#color\(\1\)#g'

Refactoring version placeholders before a release

Refactor version placeholder tags in docblocks to prepare for a release.

grep -FRl --exclude='*/node_modules/*' '@since [unreleased]' . | xargs sed -i '' -e 's#\@since \[unreleased\]#\@since 3\.4\.0#g'

Removing Lines

Useful when deleting files and needing to remove lines referencing them for inclusion or import. (source)

grep -FRl --include='*.scss' --exclude='*/node_modules/*' "@import '../../_tools/scss/mixins';" . | xargs sed -i '' -e "/@import '..\/..\/_tools\/scss\/mixins';/d"

GET HTTP Response Code

Useful for detecting the state of a webpage. For example, a site protected by HTTP Authentication should return 401 (Unauthorized). (source)

-L follow redirects (like http to https, for example)

-s silence progress and errors

-o direct output

-w write to stdout

--url url to request

curl -L -s -o /dev/null -w "%{http_code}" --url