export const getFallBackShellConfig = (shell: string,shellArgs: string[],defaultShell: string,defaultShellArgs: string[]): {shell: string;shellArgs: string[];} | null => {if (shellArgs.length > 0) {return {shell,shellArgs: []};}if (shell != defaultShell) {return {shell: defaultShell,shellArgs: defaultShellArgs};}return null;};