sh

sh command for MoonX.

command-line

moonx

wasm

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Author

cli

Version

0.1.7

License

Apache-2.0

Repository

github.com/moonbit-community/cmd

Last updated

4 hours ago

Downloads

Dependencies

#sh

Observed Wasm profile (2026-09-03): this README is supplementary. The support record is the only capability authority; it lists the repeatable moon run --target wasm --release results and exclusions. Options mentioned here but not promoted in that record are not compatibility guarantees.

cli/sh is a MoonBit shell interpreter. The observed Wasm slice includes simple quoting and variables, pipelines, redirections (including here-documents), command substitution, conditionals, case/pattern matching, loops, functions and return, grouping/subshells, positional parameters including ${#name} and shift, and set -e/-u status rules.

External commands are policy-visible child requests. The audit did not observe delegation of a complete script to a host shell.

Wasm child lookup and execution use the host process policy. Native environment inheritance was not part of this Wasm-only capability audit.

Unsupported shell language constructs fail closed instead of being forwarded to another interpreter. The interpreter never delegates a complete script to a host shell. Rejected syntax uses a stable sh: <reason> diagnostic and does not expose the internal ShellError type name.

When neither -c nor a script file is supplied, the shell silently reads its script from stdin until EOF, as required by the POSIX compatibility path. -s explicitly selects stdin; following operands become $1, $2, and later positional parameters while $0 remains the invocation name. Remaining POSIX language gaps are listed in the support record.

Source Files

main.mbt

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