"shellhandler" trait for Lasso 9

std_shellhandler.lasso

[
	/* ==========================================================
		shellhandler trait
		Usage once imported into Lasso 9 type:
			.shellhandler('ls') -> directory list
			trait { 
				import std_shellhandler
			}
	========================================================== */
	

	define std_shellhandler => trait {
		provide shellhandler(cmd::string) => {
			local(shell = sys_process('/bin/bash', (: '-c', #cmd)))
			handle => { #shell->close }
			#shell->wait
			#shell->readError->size ? return #shell->readError | return #shell->read
		}
	}
]

Usage once imported into Lasso 9 type:

.shellhandler('ls') -> directory list

To import into a Lasso 9 Type

trait { 
  import std_shellhandler
}