developed by Terminal Outpost Labs

iPHONE & iPAD REFERENCE

ShellRef

ShellRef is an offline reference app for Bash, Zsh, Unix command-line tools, and terminal editors. It explains the ideas behind shell syntax and scripting, then backs them up with examples, tables, and safety notes—from your first variables and redirects to process control, shell configuration, and editor workflows. It’s for people learning the command line and experienced users who want a dependable refresher on iPhone or a second screen beside their terminal on iPad.

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02SHELLS
19MODULES
175TOPICS · OFFLINE
SHELLREF / APP PREVIEW● LOCAL INDEX
APP WALKTHROUGHPLAY ↗
DISPLAY PROFILE

Set your phosphor.

Choose a phosphor profile to recolor the site.

REFERENCE MAP

Four paths through the shell.

Choose a group to inspect its modules and a sample from the app.

SHELL REFERENCE PATH INDEX READY
BASH / SHELL BASICSINDEX / 01
01 / SELECTGROUP
02 / OPENMODULE
03 / FINDTOPIC
04 / READEXAMPLE
GROUP BASHMODULES 09STATE OFFLINE
02 SHELLS19 MODULES175 TOPICS
01 / BASH09 MODULES

Shell scripting

  1. History of Bash
  2. Shell Basics
  3. Bash Configuration
  4. Control Flow
  5. Functions
  6. Strings and Arrays
  7. File I/O and Redirection
  8. Processes and Jobs
  9. Best Practices
FROM THE REFERENCE / SHELL BASICScp -i "My File.txt" backup/

Quote a filename with spaces and request a prompt before overwriting.

02 / ZSH04 MODULES

Zsh patterns and configuration

  1. Zsh vs Bash
  2. Zsh Globbing
  3. Zsh Arrays
  4. Zsh Configuration
FROM THE REFERENCE / ZSH GLOBBINGls *.txt

Zsh expands the pattern before running the command.

03 / COMMANDS03 MODULES

Unix command lookup

  1. Text Processing
  2. File Commands
  3. System Commands
FROM THE REFERENCE / FILE COMMANDSls -la

List files in long format, including hidden files.

04 / EDITORS03 MODULES

Terminal editors

  1. Nano
  2. Vim
  3. Emacs
FROM THE REFERENCE / VIMvim ~/.zshrc

Open your Zsh configuration file in Vim.