1. When to use it
This is the most direct method when you want to know what is installed without extra tools.
var/log/packages | var/log/scripts | audit | file ownership | package db
2. Base setup
ls /var/log/packages | grep '^openssl'
grep -R "usr/bin/ssh" /var/log/packages
grep -R "etc/ssh/sshd_config" /var/log/scripts | head
Adjust host names, IPs, interfaces, paths, and versions to the real system before making the change persistent.
3. Quick verification
sed -n '1,20p' /var/log/packages/openssl-*
grep '^PACKAGE NAME' /var/log/scripts/* | head
ls /var/log/packages | wc -l
Confirm that the output matches the expected state before considering the intervention complete.
4. Operational notes
For many internal audits this text database is enough: simple, stable, and readable even over remote shell.
Quick checklist
[ ] Steps completed\n[ ] Config updated\n[ ] Tests executed\n[ ] Rollback ready\n[ ] Logs checked