Usage

`oschecker version`

Checks what you've got installed.

`oschecker machines`

Fetches every machine registered to your account and prints their status in the terminal. It shows the same data as the website, without opening a browser.

$ oschecker machines
api-prod-01Rocky 833 outdated, 17 security45 minutes ago
database-01Debian 11end of life, 3 security, 1 critical14 days ago
web-server-01Debian 13up to date2 hours ago
workstationArch2 outdated2 days ago

`oschecker machine`

Equivalent to oschecker machine <machine-name> for the machine you're on.

`oschecker machine <machine-name>`

See details and status for a specific machine.

$ oschecker machine database-01
name:database-01
os:Debian 11(end of life)
packages:1 outdated, 2 security, 1 critical

curl7.88.1-10+deb11u37.88.1-10+deb11u4
libssl33.0.8-13.0.9-1
openssl3.0.8-13.0.9-1
postgresql-1313.11-0+deb11u113.13-0+deb11u1

`oschecker machine <machine-name> --detailed`

Same as above, but with full detail: CVE links for every vulnerable package, plus machine metadata like ID, IP address and last check-in time.

$ oschecker machine database-01 --detailed
id:7c2e4f81-9a05-4c3b-8e6d-1f0a3b5c7d92
checkin:5 days ago
ip:192.168.1.50
client:oschecker/0.1
name:database-01
os:Debian 11(end of life)
architecture:x86_64
packages:296 installed, 1 outdated, 2 security, 1 critical

curl7.88.1-10+deb11u37.88.1-10+deb11u4
libssl33.0.8-13.0.9-1CVE-2026-34180 [normal]: https://security-tracker.debian.org/tracker/CVE-2026-34180
openssl3.0.8-13.0.9-1CVE-2026-34180 [normal]: https://security-tracker.debian.org/tracker/CVE-2026-34180
postgresql-1313.11-0+deb11u113.13-0+deb11u1CVE-2026-41310 [critical]: https://security-tracker.debian.org/tracker/CVE-2026-41310

`oschecker checkin`

Collects installed packages from your package manager, builds the payload, and sends it to your account.

$ oschecker checkin

Checked in web-server-01

`oschecker checkin --dry-run`

Builds the checkin-payload but doesn't send it. This is useful for testing plug-ins, so you can sanity-check them before trusting them on a schedule.

$ oschecker checkin --dry-run
os:Debian 13
packages:412 installed
disk-var:62%
backup-age:3.2h