exports . run = function run ( argv , parent ) { if ( argv . _ . length === 0 ) { console . error ( parent . yargs . help ( ) ) ; } else { var target = argv . _ [ 0 ] ; console . error ( parent . command ( target ) . help ( ) ) ; } } ; exports . yargs = function yargs ( yargs ) { return yargs . usage ( [ '사용법: ysjs help <명령>' , '' , '<명령>의 사용법을 보여줍니다.' ] . join ( '\n' ) ) ; } ;