Hosting Operations
Read-only, can be slowRead the Restore Drill Validation Report
You need to pull the key pass, RPO, RTO, checksum, and file-count lines from a restore drill report.
Command
cd restore-dr && grep -E 'status=|rpo_minutes=|rto_seconds=|checksum=|file_count=' reports/restore-dr-2026-06-25.txtBefore 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 a report as a substitute for running the restore and validation commands.
Expected output
Key report lines showing status, RPO, RTO, checksum, and file-count results.
System impact
Read-only, can be slow. Nothing changes. The command reads the report.
Scope this to the smallest useful path or service on busy systems.
Recovery / rollback: no state is changed.
When to use it
Use after a drill to capture the validation signals people will ask for during an incident review.
When not to use it
Do not use a report as a substitute for running the restore and validation commands.
Watch this command run
Command transcript
This sanitized transcript shows the commands and output shape without exposing host details.
$ cd restore-dr && cat reports/restore-dr-2026-06-25.txt
restore_dr=2026-06-25
backup_id=2026-06-25
status=pass
rpo_minutes=15
rto_seconds=42
checksum=pass
file_count=pass
permissions=reviewed$ cd restore-dr && grep -E 'status=|rpo_minutes=|rto_seconds=|checksum=|file_count=' reports/restore-dr-2026-06-25.txt
status=pass
rpo_minutes=15
rto_seconds=42
checksum=pass
file_count=passView commands shown
These are the commands shown in the sanitized transcript.
Commands shown
cd restore-dr && cat reports/restore-dr-2026-06-25.txtcd restore-dr && grep -E 'status=|rpo_minutes=|rto_seconds=|checksum=|file_count=' reports/restore-dr-2026-06-25.txt
next steps
Related commands
Read the Backup Manifest
The manifest should say what backup you are about to trust.
cd restore-dr && cat backups/2026-06-25/MANIFEST.txt
Find Missing Files in an Old Backup
The fastest failed restore drill is the one that finds missing critical files early.
cd restore-dr && tar -tf backups/2026-06-24/site.tar | sed 's#^./##' | sort | comm -23 required-files.txt -
Extract a Backup Into a Restore Sandbox
A restore drill should write to a sandbox, not production.
cd restore-dr && rm -rf restore-sandbox/full && mkdir -p restore-sandbox/full && tar -xf backups/2026-06-25/site.tar -C restore-sandbox/full
List Archive Contents Before Extracting
You can inspect a tar backup before it writes a single file.
cd restore-dr && tar -tf backups/2026-06-25/site.tar | sed 's#^./##' | sort
List Restore Points Before a Drill
A restore drill starts by proving which backups actually exist.
cd restore-dr && find backups -maxdepth 2 -type f -name MANIFEST.txt -printf '%TY-%Tm-%Td %TH:%TM %h\n' | sort -r
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.