Hosting Operations
Risk: cautionRestore One File From Last Good Release
One file is dirty or suspect, and you want to restore just that path from a known-good release tag.
Command
cd /lab/git-recovery-rollback && git restore --source=release-2026-06-25-1000 -- app/config.ymlBefore you run this
Risk: caution. Do not run this on a path with uncommitted work you still need unless you have saved or reviewed the diff.
Expected output
The diff for app/config.yml changes after the targeted restore.
System impact
app/config.yml in the disposable repo is replaced with the version from release-2026-06-25-1000.
When to use it
Use when you need a targeted file recovery from a tag, commit, or branch.
When not to use it
Do not run this on a path with uncommitted work you still need unless you have saved or reviewed the diff.
Recovery / rollback
Restore the file again from HEAD or discard the disposable fixture copy.
Watch this command run
Example output from a temporary Linux lab
This example uses disposable sample files and sanitized output so you can inspect the shape of the result before touching a real system.
$ cd /work/git-recovery-rollback && git diff -- app/config.yml
diff --git a/app/config.yml b/app/config.yml
index 587c07b..eb4e72d 100644
--- a/app/config.yml
+++ b/app/config.yml
@@ -1,2 +1,3 @@
version=1.2
feature_flag=checkout-redesign
+debug_logging=true$ cd /work/git-recovery-rollback && git restore --source=release-2026-06-25-1000 -- app/config.yml
$ cd /work/git-recovery-rollback && git diff -- app/config.yml
diff --git a/app/config.yml b/app/config.yml
index 587c07b..8be1a2f 100644
--- a/app/config.yml
+++ b/app/config.yml
@@ -1,2 +1,2 @@
-version=1.2
-feature_flag=checkout-redesign
+version=1.1
+feature_flag=offView reproducible demo details
This page shows the sanitized shell transcript and the setup steps needed to reproduce the example.
Lab setup steps
cd /lab/git-recovery-rollback && git diff -- app/config.ymlcd /lab/git-recovery-rollback && git restore --source=release-2026-06-25-1000 -- app/config.ymlcd /lab/git-recovery-rollback && git diff -- app/config.yml
next steps
Related commands
Revert the Suspect Release Commit
Undo a bad release with a new commit instead of rewriting history.
cd /lab/git-recovery-rollback && git restore -- app/config.yml && git revert --no-edit release-2026-06-25-1030
Preview the Patch a Rollback Would Apply
Show the exact file changes before moving the branch back.
cd /lab/git-recovery-rollback && git diff --stat HEAD..release-2026-06-25-1000
Show Files Changed Since Last Good Release
Compare the suspect release against the last known-good tag.
cd /lab/git-recovery-rollback && git diff --name-status release-2026-06-25-1000..HEAD
Snapshot Git Status Before Recovery
Before rollback commands, capture the branch and dirty files.
cd /lab/git-recovery-rollback && git status --short --branch
Map Recent Release Commits
A rollback is easier when the last few release tags are visible.
cd /lab/git-recovery-rollback && git log --oneline --decorate --graph --all -8
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.
Useful for
- LPIC-1 style command-line practice
- LFCS style performance tasks
- Linux+ style troubleshooting review
Independent study support only. No affiliation, endorsement, exam dumps, or real exam questions.