Disk cleanup

Skill ebal/AI-Skills/disk-cleanup

A portable, shareable collection of AI agent skills — structured instruction packs that teach coding agents how to perform specific tasks consistently.

Install

npx -y skills add ebal/AI-Skills --skill disk-cleanup

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What its author says it does

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Deploy and run a disk cleanup script on remote Debian/Ubuntu systems. Use when the user says "clean disk", "free space", "disk cleanup", "clean up server", "deploy cleanup", or wants to run /root/clean.sh on a remote host.

SKILL.md

3.0 KB, as published. Nobody here has run it

Disk Cleanup

Deploys and runs a disk cleanup script on remote Debian/Ubuntu systems. Removes old kernels, clears caches, vacuums logs, and prunes Docker/pip/npm — with before/after disk usage reporting.

Locating the script

Commands below use ${SKILL_DIR} for the folder that contains this skill. Set it to wherever the skill is installed, for example:

SKILL_DIR="$HOME/.claude/skills/disk-cleanup"     # Claude Code
# SKILL_DIR="$HOME/.config/opencode/skills/disk-cleanup"  # OpenCode / OpenWork
# On Claude Code you can also reuse the injected variable: SKILL_DIR="$CLAUDE_SKILL_DIR"

Quick Start

Deploy and run on a remote host:

# 1. Copy the script to the remote host
scp "${SKILL_DIR}/clean.sh" HOST:/tmp/clean.sh

# 2. SSH in and run as root
ssh HOST "sudo bash /tmp/clean.sh"

Or for a safe preview first:

ssh HOST "sudo bash /tmp/clean.sh --dry-run"

What It Does

Step	What is cleaned
1	Old kernel images (keeps the running kernel)
2	Package documentation (`/usr/share/doc/*`)
3	systemd journal (keeps last 7 days)
4	apt cache (`autoclean` + `clean`)
5	Unused dependencies (`autoremove --purge`)
6	pip cache (if pip3 is installed)
7	npm cache (if npm is installed)
8	Docker unused images/containers/networks (if Docker is running)
9	Filesystem sync

Prints disk usage before and after, with estimated MB freed.

Options

Flag	Effect
`--dry-run`	Show what would be deleted without touching anything
`-h` / `--help`	Print usage info

Deploying to Multiple Hosts

To deploy to a list of servers:

HOSTS="web1 web2 db1"

for host in $HOSTS; do
    echo "=== $host ==="
    scp "${SKILL_DIR}/clean.sh" "$host:/tmp/clean.sh"
    ssh "$host" "sudo bash /tmp/clean.sh"
    echo ""
done

Or use a dry-run across all hosts first:

for host in $HOSTS; do
    echo "=== $host ==="
    scp "${SKILL_DIR}/clean.sh" "$host:/tmp/clean.sh"
    ssh "$host" "sudo bash /tmp/clean.sh --dry-run"
    echo ""
done

Scheduling via Cron

To run weekly (e.g., every Sunday at 3 AM):

# On the remote host:
echo "0 3 * * 0 root /tmp/clean.sh >> /var/log/disk-cleanup.log 2>&1" \
    > /etc/cron.d/disk-cleanup

Requirements

Debian/Ubuntu system with apt
Root access (script checks for $EUID -ne 0)
journalctl for log vacuuming (systemd-based systems only)

Notes

Journal vacuum keeps 7 days (configurable via JOURNAL_MIN variable at top of script)
Docker/pip/npm cleanup is skipped automatically if not installed
Safe to re-run — idempotent, no side effects on already-clean systems
The script syncs the filesystem at the end to flush all writes