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Hosting Operations

Read-only

Show Files Changed Since Last Good Release

A new release is suspect, and you need a quick list of files changed after the last stable release.

Command

git diff --name-status release-2026-06-25-1000..HEAD

Before you run this

System impact: Read-only. Low when scoped to the shown target.

When not to use it: Do not use this as proof of root cause; it only narrows the changed surface.

Expected output

A name-status list including app/config.yml, db/migrate.sql, public/index.html, and release metadata.

System impact

Read-only. Nothing changes. Git lists files changed between the previous release tag and HEAD.

Recovery / rollback: no state is changed.

When to use it

Use when deciding whether a rollback is likely to touch code, config, migrations, or release metadata.

When not to use it

Do not use this as proof of root cause; it only narrows the changed surface.

next steps

Related commands

Hosting Operations Read-only

Revert the Suspect Release Commit

Undo a bad release with a new commit instead of rewriting history.

git restore -- app/config.yml && git revert --no-edit release-2026-06-25-1030
Hosting Operations Deletes data

Diff Restored Config Against Expected

A restored config can exist and still be the wrong config.

BACKUP_ROOT=/srv/backups/site EXPECTED_CONFIG=/srv/backups/site/expected/app/config.yml RESTORE_SANDBOX=/tmp/linuxoneliners-restore/full && rm -rf "$RESTORE_SANDBOX" && mkdir -p "$RESTORE_SANDBOX" && tar -xf "$BACKUP_ROOT/2026-06-25/site.tar" -C "$RESTORE_SANDBOX" && diff -u "$EXPECTED_CONFIG" "$RESTORE_SANDBOX/app/config.yml"
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.

  • LFCS style performance-task practice

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