Signals                 package:base                 R Documentation

_I_n_t_e_r_r_u_p_t_i_n_g _E_x_e_c_u_t_i_o_n _o_f _R

_D_e_s_c_r_i_p_t_i_o_n:

     On receiving 'SIGUSR1' R will save the workspace and quit.
     'SIGUSR2' has the same result except that the '.Last' function and
     'on.exit' expressions will not be called.

_U_s_a_g_e:

     kill -USR1 pid
     kill -USR2 pid

_A_r_g_u_m_e_n_t_s:

     pid: The process ID of the R process

_W_a_r_n_i_n_g:

     It is possible that one or more R objects will be undergoing
     modification at the time the signal is sent.  These objects could
     be saved in a corrupted form.