Unix/Linux CLI Commands vs SimpleSSM

Unix/Linux CLI Commands is a clean, fast reference for the Unix and Linux command line — and a safe place to practice what you learn. Whether you're a student, a developer, or a system administrator brushing up, every command is explained in plain language with real examples you can try right away. BROWSE BY CATEGORY Commands are grouped into clear categories — file management, searching, text processing, networking & communication, storage, system status and more — so you can find what you need fast or explore a topic from the ground up. LEARN WHAT EACH COMMAND DOES Each entry gives you the command, its full name, a short description of what it does, and practical examples. No fluff, no wall of man-page text — just what you need to understand and use it. PRACTICE IN A SAFE TERMINAL Reading is one thing; doing is another. The built-in terminal is a real, in-memory shell where you can actually run commands — ls, cd, pwd, mkdir, cat, echo, file, find and more — against a virtual filesystem stocked with sample files and folders. Nothing touches your real device, so you can experiment freely and break things without worry. READABLE, YOUR WAY Pick the reading font and size that suit you, and choose Light, Dark, or System appearance. Designed to look right on both iPhone and iPad. A handy companion for anyone learning the shell or keeping the essentials close at hand.

SimpleSSM puts your AWS EC2 fleet in your pocket. Browse instances, watch metrics, run commands, and open a full terminal on any instance — all over AWS Systems Manager (SSM), with no VPN, no bastion hosts, no SSH keys, and no open inbound ports. Whether you're on call, away from your desk, or just prefer working from an iPad, SimpleSSM gives you real access to your infrastructure — not just a dashboard. A REAL TERMINAL Open a secure shell on any SSM-managed instance, right from your iPhone or iPad. Full terminal emulation with a keyboard toolbar built for shell work. On iPad, keep multiple connections open at once and switch between them from the sidebar. YOUR WHOLE FLEET AT A GLANCE - Browse instances across AWS accounts and regions with profiles - Filter by running, favorites, or recently connected - Instance details: state, health checks, IPs, tags, security groups - Start, stop, and reboot instances with confirmation guards - CloudWatch metrics — CPU, network, disk and more — in a swipeable carousel you can customize RUN COMMANDS WITHOUT CONNECTING Send shell commands to instances via SSM Run Command and read the output in the app. Save your go-to one-liners as snippets so fixing things twice never means typing them twice. BUILT FOR SECURITY - All traffic rides AWS Systems Manager sessions — your instances need no public IPs and no open ports - Supports IAM access keys and AWS IAM Identity Center (SSO) - Credentials are stored in the device Keychain, never on our servers - Lock the app behind Face ID / Touch ID - Sessions are logged in AWS like any other SSM session, so your audit trail stays intact FREE AND PRO The free version is fully functional with one profile, one connection at a time, and one snippet. SimpleSSM Pro Mobile removes every limit on iPhone and iPad. Or step up to SimpleSSM Pro — one upgrade that unlocks everything on iPhone, iPad, AND the SimpleSSM Mac app, including Mac-only features like SSM port-forwarding tunnels and terminal themes. REQUIREMENTS You'll need an AWS account with instances managed by AWS Systems Manager (the SSM agent is preinstalled on most Amazon-provided AMIs) and IAM permissions for Session Manager. Want to try it first? Enter "demo" for both credential fields to explore the app with sample instances — no AWS account needed. SimpleSSM is an independent application and is not affiliated with, endorsed by, or sponsored by Amazon Web Services, Inc. or its affiliates. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/