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Web Server Rescue

Read-only, can be slow

Find Broken Internal Links in Built HTML

You need to list internal href paths that do not exist in the static build.

Command

grep -Rho --include='*.html' 'href="/[^"]*"' public | sed 's#href="##;s#"##' | while read -r path; do test -e "public${path}" || echo "$path"; done | sort -u

Before you run this

System impact: Read-only. Can create load on large logs, directories, filesystems, or process tables.

When not to use it: Do not use it for JavaScript-routed apps or remote URLs without adapting the path logic.

Expected output

Root-relative paths linked from HTML that do not exist in the public directory.

System impact

Read-only, can be slow. Nothing changes. The command extracts internal links and checks whether the target path exists locally.

Scope this to the smallest useful path or service on busy systems.

Recovery / rollback: no state is changed.

When to use it

Use before deploys, after URL changes, or after moving content between sections.

When not to use it

Do not use it for JavaScript-routed apps or remote URLs without adapting the path logic.

next steps

Related commands

Hosting Operations Can be slow

Find HTML Pages Missing from the Sitemap

A page can exist in the build but never make it into the sitemap.

find public -name '*.html' -print | sed 's#^public#https://example.com#' | while read -r url; do grep -q "$url" public/sitemap.xml || echo "$url"; done

Hosting Operations Can be slow

Find Pages Missing Canonical Links

Canonical tags are easy to drop when templates branch.

find public -name '*.html' -print | while read -r f; do grep -qi 'rel="canonical"' "$f" || echo "$f"; done

Hosting Operations Can be slow

Find Feed Links Missing from the Sitemap

Your feed can advertise URLs that the sitemap never lists.

grep -o '<link>https://example.com/[^<]*</link>' public/feed.xml | sed 's#<link>##;s#</link>##' | while read -r url; do grep -q "$url" public/sitemap.xml || echo "$url"; done

Hosting Operations Can be slow

Find Pages Missing Meta Descriptions

Missing descriptions are usually a content template problem, not a mystery.

find public -name '*.html' -print | while read -r f; do grep -qi 'name="description"' "$f" || echo "$f"; done

Hosting Operations Can be slow

Find Pages Missing og:title

Social previews often fail because one template missed Open Graph tags.

find public -name '*.html' -print | while read -r f; do grep -qi 'property="og:title"' "$f" || echo "$f"; done

Study mapping

Use this as independent command practice: read the notes, predict the output, then compare it with the example before using a real shell.

Independent study support only. No affiliation, endorsement, exam dumps, or real exam questions.