A JavaScript implementation of a bash-like shell (we use it in Yarn 2 to provide cross-platform scripting). This package exposes an API that abstracts both the parser and the interpreter; should you only need the parser you can check out @yarnpkg/parsers, but you probably won't need it.
import {execute} from '@yarnpkg/shell';
process.exitCode = await execute(`ls "$0" | wc -l`, [process.cwd()]);- Typechecked
- Portable across systems
- Supports custom JS builtins
- Supports pipes
- Supports glob patterns (only for files that exist on the filesystem:
ls *.txt) - Supports logical operators
- Supports subshells
- Supports variables
- Supports string manipulators
- Supports argc/argv
- Supports background jobs with color-coded output
- Supports the most classic builtins
- Doesn't necessarily need to access the fs
- Full glob support (
mv build/{index.js,index.build.js},echo {foo,bar},FOO=a,b echo {$FOO,x}) - More string manipulators
- Perfect POSIX compliance (basic scripting is enough for now)
- Multiline scripts (we mostly target one-liners)
- Control structures (same reason)