subshell
Electron energy subdivision
A subshell is a subdivision of an electron shell in atomic physics, designated by letters (s, p, d, f) that indicate orbital shape and energy level: The 2p subshell can hold up to six electrons.
In computing, a subshell is a child process spawned by a shell to execute commands in an isolated environment, often created by parentheses in scripts: Variables set in a subshell don't affect the parent.
computing
Forceful striking blow
- fishGilled aquatic vertebrate
- parenthesesCurved enclosing punctuation marks
- terminalAt the endpoint
- unixPortable multitasking operating system
interpreter · pipe · stdin · stdout · fork
bash
Forceful striking blow
- fishGilled aquatic vertebrate
- parenthesesCurved enclosing punctuation marks
- terminalAt the endpoint
- atomic physicsatom, atoms, atomic nucleus, electron, atomic number
- chemistryatom, atoms, organic chemistry, molecule, chemistry
- atomic propertiesatomic number, atomic mass, atomic weight, electronegativity, valence electrons
- Orbitalsorbit, orbital, atomic orbital, 2s, 3d
- shell scriptingbash, shebang, scripts, source, sourcing
- Shell Settingsexport, alias, prompt, profile, variable