Scripts

Script catalog

Browse raw Bash scripts and command-first documentation published on helper.sh.

Starter probe

hello.sh

A tiny Bash payload that prints environment information and confirms the target host is ready for follow-up automation.

curl -fsSL helper.sh/hello.sh | bash

Operations helper

docker-data-move.sh

Bundled from the tool-tl/docker-data-move.sh project and republished through helper.sh for direct execution, operational handoff, and multilingual documentation.

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curl -fsSL helper.sh/docker-data-move.sh | sudo bash

Bootstrap installer

install_docker_ubuntu_2404.sh

A helper.sh-hosted installation script for Ubuntu 24.04.4 LTS that removes legacy Docker packages, installs Docker Engine from the official repository, enables the service, and verifies both Docker and Docker Compose.

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curl -fsSL helper.sh/install_docker_ubuntu_2404.sh | sudo bash

Docker app installer

install_nginx_base_docker.sh

A helper.sh-hosted script that creates the /data/nginx layout, writes a safe default Nginx configuration, pulls nginx:1.22.1, and runs a restartable container with host-mounted content, config, and logs.

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curl -fsSL helper.sh/install_nginx_base_docker.sh | sudo bash

Docker app installer

install_mysql57_base_docker.sh

A helper.sh-hosted script that creates the /data/mysql5.7 layout, writes a baseline MySQL 5.7 config, pulls mysql:5.7.44, and runs a restartable container with mounted data, config, and init directories.

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curl -fsSL helper.sh/install_mysql57_base_docker.sh | sudo bash

Docker app installer

install_redis705_base_docker.sh

A helper.sh-hosted script that creates the /data/redis7.0.5 layout, writes a baseline Redis configuration, pulls redis:7.0.5, and runs a password-protected container with mounted data and config.

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curl -fsSL helper.sh/install_redis705_base_docker.sh | sudo bash

Docker app installer

install_php72_base_docker.sh

A helper.sh-hosted script that creates the /data/php7.2 layout, writes a baseline php.ini, pulls php:7.2-fpm, and runs a restartable container with mounted application code, config, and logs.

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curl -fsSL helper.sh/install_php72_base_docker.sh | sudo bash

Docker app installer

install_workerman3524_base_docker.sh

A helper.sh-hosted script that creates the /data/workerman3.5.24 layout, writes a minimal Workerman application, builds a local PHP 7.2 CLI image with Workerman 3.5.24, and runs a restartable container.

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curl -fsSL helper.sh/install_workerman3524_base_docker.sh | sudo bash

Network server installer

install_openvpn_server_centos.sh

Designed for a CentOS 7 OpenVPN server whose LAN address is 192.168.30.110 with gateway 192.168.30.1. The script pushes the 192.168.30.0/24 route to VPN clients and applies SNAT on the server LAN interface so clients can talk to the full 192.168.30.0/24 network without adding static routes on every LAN device.

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curl -fsSL helper.sh/install_openvpn_server_centos.sh | sudo bash

Network client installer

install_openvpn_client_ubuntu.sh

Designed for Ubuntu 20.04, 22.04, and 24.04 LTS hosts that use username/password OpenVPN client authentication and need a repeatable way to install, copy client files, and start the service.

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curl -fsSL helper.sh/install_openvpn_client_ubuntu.sh | sudo bash

Network client installer

install_openvpn_client_centos7.sh

Designed for CentOS 7 hosts that use username/password OpenVPN client authentication and need a repeatable way to install the package, place client files, attach DNS hooks, and start the systemd service.

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curl -fsSL helper.sh/install_openvpn_client_centos7.sh | sudo bash

System maintenance

switch-centos7-repo.sh

A helper.sh-hosted CentOS 7 repository switching script that helps replace old or unreachable yum repos with a working mirror source so package installation and updates can continue.

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curl -fsSL -o switch-centos7-repo.sh helper.sh/switch-centos7-repo.sh && sudo bash switch-centos7-repo.sh

System maintenance

optimize_centos7_ssh.sh

Designed for legacy CentOS 7 hosts where SSH login is slow because the daemon waits on reverse DNS lookup, GSSAPI negotiation, or IPv6 fallback. The script backs up sshd_config, enforces the recommended settings, validates the syntax, and then restarts sshd.

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curl -fsSL helper.sh/optimize_centos7_ssh.sh | sudo bash

Security hardening

centos_disable_password_ssh.sh

Built for CentOS and similar OpenSSH hosts that should move from password-based login to key-only access. The script refuses to proceed unless a usable authorized_keys file exists for the target user, then updates sshd_config with idempotent edits and validates the result before reloading the daemon.

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curl -fsSL helper.sh/centos_disable_password_ssh.sh | sudo bash

Docker router lab

install_bleachwrt_docker_centos7.sh

A conservative one-shot installer derived from a local BleachWrt Docker repository. It installs or starts Docker, creates a macvlan network, persists /etc/config, and intentionally avoids proxy, VPN bypass, and traffic circumvention configuration.

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curl -fsSL helper.sh/install_bleachwrt_docker_centos7.sh | sudo bash -s -- --yes

Developer utility

tree-to-file.sh

A helper.sh-hosted shell script for Linux, macOS, and common Unix environments that exports a filtered directory tree into a text file. It prefers the system tree command, attempts installation through the available package manager when tree is missing, and still produces output through a built-in find plus awk fallback.

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curl -fsSL helper.sh/tree-to-file.sh | sh