Utilities & Shells

Bash scripting syntax and one-liners — variables, loops, conditionals, and text processing for automation and pentesting.

Cron syntax reference and commands for scheduling jobs on Linux — plus persistence and privesc angles for pentesters.

Versatile CLI for HTTP(S), file transfer, headers, and scripting web/API tests during pentests.

Move files to and from compromised Linux and Windows hosts — HTTP, SMB, netcat, base64, and living-off-the-land binaries.

Version control CLI for cloning repos, hunting exposed secrets in history, and recovering source during web assessments.

GnuPG commands for encrypting files, signing, and managing keys — symmetric and public-key workflows.

jq command-line JSON processor — filter, transform, and extract fields from API responses and tool output.

Essential Linux command-line reference — files, permissions, processes, networking, and search for everyday and pentest use.

Cryptography toolkit for certificate inspection, TLS testing, and encoding/hashing in pentests and forensics.

PowerShell commands for Windows enumeration, download/execution, and offensive one-liners during authorized engagements.

Regular expression syntax reference plus ready-to-use patterns for grepping IPs, hashes, emails, and secrets.

One-liners and staged payloads for bash, Python, and PowerShell reverse shells during authorized penetration tests.

Secure shell for remote access, port forwarding, SOCKS proxies, and file transfer during authorized engagements.

Terminal multiplexer for persistent sessions, split panes, and windows — keep shells alive across SSH drops.

Vim editor commands — modes, motions, editing, search/replace, and the survival basics for editing files on remote shells.

Non-interactive downloader for mirroring sites, retrieving payloads, and recursive cloning during recon.

Windows CMD command reference — files, users, networking, services, and enumeration commands for admins and pentesters.