fn_registry/bash/functions/shell/assert_command_exists.md

name, kind, lang, domain, version, purity, signature, description, tags, uses_functions, uses_types, returns, returns_optional, error_type, imports, tested, tests, test_file_path, file_path

name	kind	lang	domain	version	purity	signature	description	tags	uses_functions	uses_types	returns	returns_optional	error_type	imports	tested	tests	test_file_path	file_path
assert_command_exists	function	bash	shell	1.0.0	impure	assert_command_exists(command_name: string) -> void	Verifica que un comando está disponible en el PATH. Sale con exit code 1 si no se encuentra, con mensaje a stderr.	assert command exists validation shell bash path				false	error_go_core		false			bash/functions/shell/assert_command_exists.sh

Ejemplo

source functions/shell/assert_command_exists.sh

assert_command_exists docker
assert_command_exists jq

Notas

Usa command -v (POSIX) con redirección &>/dev/null para suprimir output. No produce nada a stdout en caso de éxito.

Output limpio: void en éxito, mensaje a stderr en fallo.