mharcerz/microshell

How mharcerz/microshell works

Microshell is a small interactive Linux shell. Its main workflow is to show a user-and-directory prompt, read a command with Readline, split it into arguments, and either handle a supported command or run an external program. The README also advertises command history, completion, colored output, signal handling, and quoted arguments. The source excerpt confirms the prompt, history, parsing, signal setup, and external execution; omitted portions prevent verifying the internal dispatch paths for individual built-ins.

Main entry points: microshell.c Shell loop

Components 13

Interactive shell

Shell loop microshell.c
Prompt and identity microshell.c
Readline input microshell.c
Command history microshell.c
Syntax completion microshell.c

Command handling

Argument parser microshell.c
Shell built-ins microshell.c
Cut command microshell.c
Calendar command microshell.c
Help output microshell.c

System execution

Signal handling microshell.c
External programs

Other components

Shell user

Connections 12

Shell user → Shell loop: starts shell README.md
Shell loop → Prompt and identity: shows prompt microshell.c
Shell loop → Readline input: reads command microshell.c
Readline input → Command history: records input microshell.c
Readline input → Syntax completion: supports completion README.md
Shell loop → Argument parser: splits command microshell.c
Argument parser → Shell built-ins: dispatches command microshell.c
Shell built-ins → Cut command: dispatches cut microshell.c
Shell built-ins → Calendar command: dispatches cal microshell.c
Shell built-ins → Help output: prints help microshell.c
Argument parser → External programs: executes unsupported microshell.c
Shell loop → Signal handling: registers signals microshell.c

Drawn by GitDiagram on November 13, 2026 from the repository's file tree, README and source files. Read as Markdown ·