Subshell

Definitions

1. A child shell process spawned by the current shell to execute commands in an isolated environment, where variable changes and directory changes do not affect the parent shell.

   In plain English: A temporary copy of your terminal session that runs commands without affecting your original session.

   Example: "Wrapping the cd in a subshell — (cd /tmp && make) — means your original directory is unchanged after."

Related Terms

• Bash
• PowerShell
• Exit Code
• Export
• Field Separator
• Here Document
• Pipe
• Script Block
• Variable Expansion
• Cgroups
• Namespace
• Mount Point
• Systemd