2016 Update

Task/Execute-a-system-command/00DESCRIPTION

@@ -1 +1,6 @@
-In this task, the goal is to run either the <tt>ls</tt> (<tt>dir</tt> on Windows) system command, or the <tt>pause</tt> system command.
+;Task:
+Run either the &nbsp; <tt>'''ls'''</tt> &nbsp; system command &nbsp; (<tt>'''dir'''</tt> &nbsp; on Windows), &nbsp; or the &nbsp; <tt>'''pause'''</tt> &nbsp;  system command.
+<br><br>
+;Related tasks
+* [[Get_system_command_output | Get system command output]]
+<br><br>

Task/Execute-a-system-command/ABAP/execute-a-system-command.abap

@@ -0,0 +1,134 @@
+*&---------------------------------------------------------------------*
+*& Report  ZEXEC_SYS_CMD
+*&
+*&---------------------------------------------------------------------*
+*&
+*&
+*&---------------------------------------------------------------------*
+
+REPORT  zexec_sys_cmd.
+
+DATA: lv_opsys      TYPE          syst-opsys,
+      lt_sxpgcotabe TYPE TABLE OF sxpgcotabe,
+      ls_sxpgcotabe LIKE LINE OF  lt_sxpgcotabe,
+      ls_sxpgcolist TYPE          sxpgcolist,
+      lv_name       TYPE          sxpgcotabe-name,
+      lv_opcommand  TYPE          sxpgcotabe-opcommand,
+      lv_index      TYPE          c,
+      lt_btcxpm     TYPE TABLE OF btcxpm,
+      ls_btcxpm     LIKE LINE OF  lt_btcxpm
+      .
+
+* Initialize
+lv_opsys = sy-opsys.
+CLEAR lt_sxpgcotabe[].
+
+IF lv_opsys EQ 'Windows NT'.
+  lv_opcommand = 'dir'.
+ELSE.
+  lv_opcommand = 'ls'.
+ENDIF.
+
+* Check commands
+SELECT * FROM sxpgcotabe INTO TABLE lt_sxpgcotabe
+  WHERE opsystem  EQ lv_opsys
+    AND opcommand EQ lv_opcommand.
+
+IF lt_sxpgcotabe IS INITIAL.
+  CLEAR ls_sxpgcolist.
+  CLEAR lv_name.
+  WHILE lv_name IS INITIAL.
+* Don't mess with other users' commands
+    lv_index = sy-index.
+    CONCATENATE 'ZLS' lv_index INTO lv_name.
+    SELECT * FROM sxpgcostab INTO ls_sxpgcotabe
+      WHERE name EQ lv_name.
+    ENDSELECT.
+    IF sy-subrc = 0.
+      CLEAR lv_name.
+    ENDIF.
+  ENDWHILE.
+  ls_sxpgcolist-name      = lv_name.
+  ls_sxpgcolist-opsystem  = lv_opsys.
+  ls_sxpgcolist-opcommand = lv_opcommand.
+* Create own ls command when nothing is declared
+  CALL FUNCTION 'SXPG_COMMAND_INSERT'
+    EXPORTING
+      command                = ls_sxpgcolist
+      public                 = 'X'
+    EXCEPTIONS
+      command_already_exists = 1
+      no_permission          = 2
+      parameters_wrong       = 3
+      foreign_lock           = 4
+      system_failure         = 5
+      OTHERS                 = 6.
+  IF sy-subrc <> 0.
+* Implement suitable error handling here
+  ELSE.
+* Hooray it worked! Let's try to call it
+    CALL FUNCTION 'SXPG_COMMAND_EXECUTE_LONG'
+      EXPORTING
+        commandname                   = lv_name
+      TABLES
+        exec_protocol                 = lt_btcxpm
+      EXCEPTIONS
+        no_permission                 = 1
+        command_not_found             = 2
+        parameters_too_long           = 3
+        security_risk                 = 4
+        wrong_check_call_interface    = 5
+        program_start_error           = 6
+        program_termination_error     = 7
+        x_error                       = 8
+        parameter_expected            = 9
+        too_many_parameters           = 10
+        illegal_command               = 11
+        wrong_asynchronous_parameters = 12
+        cant_enq_tbtco_entry          = 13
+        jobcount_generation_error     = 14
+        OTHERS                        = 15.
+    IF sy-subrc <> 0.
+* Implement suitable error handling here
+      WRITE: 'Cant execute ls - '.
+      CASE sy-subrc.
+        WHEN 1.
+          WRITE: / ' no permission!'.
+        WHEN 2.
+          WRITE: / ' command could not be created!'.
+        WHEN 3.
+          WRITE: / ' parameter list too long!'.
+        WHEN 4.
+          WRITE: / ' security risk!'.
+        WHEN 5.
+          WRITE: / ' wrong call of SXPG_COMMAND_EXECUTE_LONG!'.
+        WHEN 6.
+          WRITE: / ' command cant be started!'.
+        WHEN 7.
+          WRITE: / ' program terminated!'.
+        WHEN 8.
+          WRITE: / ' x_error!'.
+        WHEN 9.
+          WRITE: / ' parameter missing!'.
+        WHEN 10.
+          WRITE: / ' too many parameters!'.
+        WHEN 11.
+          WRITE: / ' illegal command!'.
+        WHEN 12.
+          WRITE: / ' wrong asynchronous parameters!'.
+        WHEN 13.
+          WRITE: / ' cant enqueue job!'.
+        WHEN 14.
+          WRITE: / ' cant create job!'.
+        WHEN 15.
+          WRITE: / ' unknown error!'.
+        WHEN OTHERS.
+          WRITE: / ' unknown error!'.
+      ENDCASE.
+    ELSE.
+      LOOP AT lt_btcxpm INTO ls_btcxpm.
+        WRITE: / ls_btcxpm.
+      ENDLOOP.
+    ENDIF.
+  ENDIF.
+ENDIF.

Task/Execute-a-system-command/Fortran/execute-a-system-command-1.f

@@ -0,0 +1,4 @@
+program SystemTest
+integer :: i
+ call execute_command_line ("ls", exitstat=i)
+end program SystemTest

Task/Execute-a-system-command/Frink/execute-a-system-command.frink

@@ -0,0 +1,2 @@
+r = callJava["java.lang.Runtime", "getRuntime"]
+println[read[r.exec["dir"].getInputStream[]]]