QSIG(1)                    POSIX Programmer's Manual                   QSIG(1)



PPRROOLLOOGG
       This manual page is part of the POSIX Programmer's Manual.  The OS
       implementation of this interface may differ (consult the corresponding
       OS manual page for details of OS behavior), or the interface may not be
       implemented on OS.

NNAAMMEE
       qsig -- signal batch jobs

SSYYNNOOPPSSIISS
       qsig [[-s _s_i_g_n_a_l]] _j_o_b___i_d_e_n_t_i_f_i_e_r...

DDEESSCCRRIIPPTTIIOONN
       To signal a batch job is to send a signal to the session leader of the
       batch job. A batch job is signaled by sending a request to the batch
       server that manages the batch job. The _q_s_i_g utility is a user-
       accessible batch client that requests the signaling of a batch job.

       The _q_s_i_g utility shall signal those batch jobs for which a batch
       _j_o_b___i_d_e_n_t_i_f_i_e_r is presented to the utility. The _q_s_i_g utility shall not
       signal any batch jobs whose batch _j_o_b___i_d_e_n_t_i_f_i_e_rs are not presented to
       the utility.

       The _q_s_i_g utility shall signal batch jobs in the order in which the
       corresponding batch _j_o_b___i_d_e_n_t_i_f_i_e_rs are presented to the utility. If
       the _q_s_i_g utility fails to process a batch _j_o_b___i_d_e_n_t_i_f_i_e_r successfully,
       the utility shall proceed to process the remaining batch
       _j_o_b___i_d_e_n_t_i_f_i_e_rs, if any.

       The _q_s_i_g utility shall signal batch jobs by sending a _S_i_g_n_a_l _J_o_b
       _R_e_q_u_e_s_t to the batch server that manages the batch job.

       For each successfully processed batch _j_o_b___i_d_e_n_t_i_f_i_e_r, the _q_s_i_g utility
       shall have received a completion reply to each _S_i_g_n_a_l _J_o_b _R_e_q_u_e_s_t sent
       to a batch server at the time the utility exits.

OOPPTTIIOONNSS
       The _q_s_i_g utility shall conform to the Base Definitions volume of
       POSIX.1-2017, _S_e_c_t_i_o_n _1_2_._2, _U_t_i_l_i_t_y _S_y_n_t_a_x _G_u_i_d_e_l_i_n_e_s.

       The following option shall be supported by the implementation:

       --ss _s_i_g_n_a_l Define the signal to be sent to the batch job.

                 The _q_s_i_g utility shall accept a _s_i_g_n_a_l option-argument that
                 is either a symbolic signal name or an unsigned integer
                 signal number (see the POSIX.1-1990 standard, Section
                 3.3.1.1). The _q_s_i_g utility shall accept signal names for
                 which the SIG prefix has been omitted.

                 If the _s_i_g_n_a_l option-argument is a signal name, the _q_s_i_g
                 utility shall send that name.

                 If the _s_i_g_n_a_l option-argument is a number, the _q_s_i_g utility
                 shall send the signal value represented by the number.

                 If the --ss option is not presented to the _q_s_i_g utility, the
                 utility shall send the signal SIGTERM to each signaled batch
                 job.

OOPPEERRAANNDDSS
       The _q_s_i_g utility shall accept one or more operands that conform to the
       syntax for a batch _j_o_b___i_d_e_n_t_i_f_i_e_r (see _S_e_c_t_i_o_n _3_._3_._1, _B_a_t_c_h _J_o_b
       _I_d_e_n_t_i_f_i_e_r).

SSTTDDIINN
       Not used.

IINNPPUUTT FFIILLEESS
       None.

EENNVVIIRROONNMMEENNTT VVAARRIIAABBLLEESS
       The following environment variables shall affect the execution of _q_s_i_g:

       _L_A_N_G      Provide a default value for the internationalization
                 variables that are unset or null. (See the Base Definitions
                 volume of POSIX.1-2017, _S_e_c_t_i_o_n _8_._2, _I_n_t_e_r_n_a_t_i_o_n_a_l_i_z_a_t_i_o_n
                 _V_a_r_i_a_b_l_e_s the precedence of internationalization variables
                 used to determine the values of locale categories.)

       _L_C___A_L_L    If set to a non-empty string value, override the values of
                 all the other internationalization variables.

       _L_C___C_T_Y_P_E  Determine the locale for the interpretation of sequences of
                 bytes of text data as characters (for example, single-byte as
                 opposed to multi-byte characters in arguments).

       _L_C___M_E_S_S_A_G_E_S
                 Determine the locale that should be used to affect the format
                 and contents of diagnostic messages written to standard
                 error.

       _L_O_G_N_A_M_E   Determine the login name of the user.

AASSYYNNCCHHRROONNOOUUSS EEVVEENNTTSS
       Default.

SSTTDDOOUUTT
       An implementation of the _q_s_i_g utility may write informative messages to
       standard output.

SSTTDDEERRRR
       The standard error shall be used only for diagnostic messages.

OOUUTTPPUUTT FFIILLEESS
       None.

EEXXTTEENNDDEEDD DDEESSCCRRIIPPTTIIOONN
       None.

EEXXIITT SSTTAATTUUSS
       The following exit values shall be returned:

        0    Successful completion.

       >0    An error occurred.

CCOONNSSEEQQUUEENNCCEESS OOFF EERRRROORRSS
       In addition to the default behavior, the _q_s_i_g utility shall not be
       required to write a diagnostic message to standard error when the error
       reply received from a batch server indicates that the batch
       _j_o_b___i_d_e_n_t_i_f_i_e_r does not exist on the server. Whether or not the _q_s_i_g
       utility waits to output the diagnostic message while attempting to
       locate the batch job on other servers is implementation-defined.

       _T_h_e _f_o_l_l_o_w_i_n_g _s_e_c_t_i_o_n_s _a_r_e _i_n_f_o_r_m_a_t_i_v_e_.

AAPPPPLLIICCAATTIIOONN UUSSAAGGEE
       None.

EEXXAAMMPPLLEESS
       None.

RRAATTIIOONNAALLEE
       The _q_s_i_g utility allows users to signal batch jobs.

       A user may be unable to signal a batch job with the _k_i_l_l utility of the
       operating system for a number of reasons. First, the process ID of the
       batch job may be unknown to the user. Second, the processes of the
       batch job may be on a remote node. However, by virtue of communication
       between batch nodes, the _q_s_i_g utility can arrange for the signaling of
       a process.

       Because a batch job that is not running cannot be signaled, and because
       the signal may not terminate the batch job, the _q_s_i_g utility is not a
       substitute for the _q_d_e_l utility.

       The options of the _q_s_i_g utility allow the user to specify the signal
       that is to be sent to the batch job.

       The --ss option allows users to specify a signal by name or by number,
       and thus override the default signal. The POSIX.1-1990 standard defines
       signals by both name and number.

       The _q_s_i_g utility is a new utility, _v_i_s_-_a_-_v_i_s existing practice; it has
       been defined in this volume of POSIX.1-2017 in response to user-
       perceived shortcomings in existing practice.

FFUUTTUURREE DDIIRREECCTTIIOONNSS
       The _q_s_i_g utility may be removed in a future version.

SSEEEE AALLSSOO
       _C_h_a_p_t_e_r _3, _B_a_t_c_h _E_n_v_i_r_o_n_m_e_n_t _S_e_r_v_i_c_e_s, _k_i_l_l, _q_d_e_l

       The Base Definitions volume of POSIX.1-2017, _C_h_a_p_t_e_r _8, _E_n_v_i_r_o_n_m_e_n_t
       _V_a_r_i_a_b_l_e_s, _S_e_c_t_i_o_n _1_2_._2, _U_t_i_l_i_t_y _S_y_n_t_a_x _G_u_i_d_e_l_i_n_e_s

CCOOPPYYRRIIGGHHTT
       Portions of this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1-2017, Standard for Information Technology --
       Portable Operating System Interface (POSIX), The Open Group Base
       Specifications Issue 7, 2018 Edition, Copyright (C) 2018 by the
       Institute of Electrical and Electronics Engineers, Inc and The Open
       Group.  In the event of any discrepancy between this version and the
       original IEEE and The Open Group Standard, the original IEEE and The
       Open Group Standard is the referee document. The original Standard can
       be obtained online at http://www.opengroup.org/unix/online.html .

       Any typographical or formatting errors that appear in this page are
       most likely to have been introduced during the conversion of the source
       files to man page format. To report such errors, see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .



IEEE/The Open Group                  2017                              QSIG(1)
