hist (1) --- manipulate the subsystem history mechanism 09/05/84 | _U_s_a_g_e | hist [ on | off | save [ ] | restore [ ]] | _D_e_s_c_r_i_p_t_i_o_n | The Shell contains a mechanism (similar to Berkeley Unix's | C-Shell) called a history mechanism. This is sort of | dynamic macro facility that allows the user to specifiy a | unique substring of a previous command and have the command | recalled and re-executed or have portions of the command | edited and inserted into the current command. | Up to 128 commands are saved in a circular command queue. | Commands are seached for and retrieved from this queue. | The possible options to 'hist' do the following | on Turn the history mechanism on and reset the queue. | If history is already enabled then this will clear | whatever command history exists in the queue. | off Turn the history mechanism off. Any command | history in the queue is lost. | save Save the current command history in the specified | file. If no file is specified, the command | history is saved in the file "=histfile=". | restore Restore the command history from a previous | session from the specified file. If no file is | specified, the command history is restored from | the file "=histfile=". | 'Hist' with no options produces a list of the current com- | mand history on STDOUT. | See the _U_s_e_r_'_s _G_u_i_d_e _f_o_r _t_h_e _S_o_f_t_w_a_r_e _T_o_o_l_s _S_u_b_s_y_s_t_e_m | _C_o_m_m_a_n_d _I_n_t_e_r_p_r_e_t_e_r for a more detailed explanation of the | history mechanism, and examples of its use. | _E_x_a_m_p_l_e_s | hist | hist on | hist off | hist save | hist restore //jeff/bin/scum | _S_e_e _A_l_s_o | _U_s_e_r_'_s _G_u_i_d_e _f_o_r _t_h_e _S_o_f_t_w_a_r_e _T_o_o_l_s _S_u_b_s_y_s_t_e_m _C_o_m_m_a_n_d | _I_n_t_e_r_p_r_e_t_e_r hist (1) - 1 - hist (1)