usage (1) --- print summary of command syntax 03/23/82 _U_s_a_g_e usage { } _D_e_s_c_r_i_p_t_i_o_n 'Usage' prints a summary of the acceptable command line syntax for each command and a summary of the acceptable cal- ling sequence for each library subprogram named in its argument list. Command line syntax is expressed in a BNF- like meta-language that is described by "help -g bnf". _E_x_a_m_p_l_e_s usage rf ed se _F_i_l_e_s =doc=/fman/s1/.d for command documentation =doc=/fman/s2/.d for subprogram documentation =doc=/fman/s3/.d for local command documentation =doc=/fman/s4/.d for local subprogram doc. =doc=/fman/s5/.d for low-level command documenta- tion =doc=/fman/s6/.d for low-level subprogram doc. =doc=/fman/index for command and subroutine index _M_e_s_s_a_g_e_s "Sorry, no help is available for " in case of mis- sing or unreadable documentation file. _S_e_e _A_l_s_o help (1), _S_o_f_t_w_a_r_e _T_o_o_l_s _S_u_b_s_y_s_t_e_m _R_e_f_e_r_e_n_c_e _M_a_n_u_a_l usage (1) - 1 - usage (1)