diff --git a/src/os/posix/src/os-impl-shell.c b/src/os/posix/src/os-impl-shell.c
index 445ae4d38..18b2f5996 100644
--- a/src/os/posix/src/os-impl-shell.c
+++ b/src/os/posix/src/os-impl-shell.c
@@ -37,6 +37,7 @@
 #include "os-posix.h"
 #include "os-impl-io.h"
 
+#include "os-shared-file.h"
 #include "os-shared-shell.h"
 #include "os-shared-idmap.h"
 
@@ -60,7 +61,6 @@
 int32 OS_ShellOutputToFile_Impl(const OS_object_token_t *token, const char *Cmd)
 {
     pid_t                           cpid;
-    uint32                          local_id;
     int                             wstat;
     const char *                    shell = getenv("SHELL");
     OS_impl_file_internal_record_t *impl;
@@ -86,13 +86,7 @@ int32 OS_ShellOutputToFile_Impl(const OS_object_token_t *token, const char *Cmd)
         dup2(impl->fd, STDERR_FILENO);
 
         /* close all _other_ filehandles */
-        for (local_id = 0; local_id < OS_MAX_NUM_OPEN_FILES; ++local_id)
-        {
-            if (OS_global_stream_table[local_id].active_id != 0)
-            {
-                close(OS_impl_filehandle_table[local_id].fd);
-            }
-        }
+        OS_CloseAllFiles();
 
         execl(shell, "sh", "-c", Cmd, NULL); /* does not return if successful */
         exit(EXIT_FAILURE);
diff --git a/src/os/rtems/CMakeLists.txt b/src/os/rtems/CMakeLists.txt
index 812ccaf6a..70d9c5947 100644
--- a/src/os/rtems/CMakeLists.txt
+++ b/src/os/rtems/CMakeLists.txt
@@ -36,15 +36,10 @@ set(RTEMS_IMPL_SRCLIST
     ../portable/os-impl-posix-dirs.c
 )
 
-if (OSAL_CONFIG_INCLUDE_SHELL)
-    list(APPEND RTEMS_IMPL_SRCLIST
-       src/os-impl-shell.c
-    )
-else ()
-    list(APPEND RTEMS_IMPL_SRCLIST
-       ../portable/os-impl-no-shell.c
-    )
-endif ()
+# Currently the "shell output to file" for RTEMS is not implemented
+list(APPEND RTEMS_IMPL_SRCLIST
+    ../portable/os-impl-no-shell.c
+)
 
 # If some form of module loading is configured,
 # then build the module loader
diff --git a/src/os/rtems/src/os-impl-shell.c b/src/os/rtems/src/os-impl-shell.c
deleted file mode 100644
index 7e2f775fb..000000000
--- a/src/os/rtems/src/os-impl-shell.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- *  NASA Docket No. GSC-18,370-1, and identified as "Operating System Abstraction Layer"
- *
- *  Copyright (c) 2019 United States Government as represented by
- *  the Administrator of the National Aeronautics and Space Administration.
- *  All Rights Reserved.
- *
- *  Licensed under the Apache License, Version 2.0 (the "License");
- *  you may not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS,
- *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- */
-
-/**
- * \file     os-impl-shell.c
- * \ingroup  rtems
- * \author   joseph.p.hickey@nasa.gov
- *
- */
-
-/****************************************************************************************
-                                    INCLUDE FILES
- ***************************************************************************************/
-
-#include "os-rtems.h"
-#include "os-impl-files.h"
-#include "os-shared-shell.h"
-
-/****************************************************************************************
-                                     DEFINES
- ***************************************************************************************/
-
-#define OS_REDIRECTSTRSIZE 15
-
-/****************************************************************************************
-                         IMPLEMENTATION-SPECIFIC ROUTINES
-             These are specific to this particular operating system
- ****************************************************************************************/
-
-/*----------------------------------------------------------------
- *
- * Function: OS_ShellOutputToFile_Impl
- *
- *  Purpose: Implemented per internal OSAL API
- *           See prototype for argument/return detail
- *
- *-----------------------------------------------------------------*/
-int32 OS_ShellOutputToFile_Impl(uint32 file_id, const char *Cmd)
-{
-    /*
-    ** this is a #define to avoid a 'variable length array' warning
-    ** 15 is for the size of the redirection string that is added
-    ** to the command
-    */
-    char  LocalCmd[OS_MAX_CMD_LEN + OS_REDIRECTSTRSIZE];
-    int32 Result;
-
-    strncpy(LocalCmd, Cmd, OS_MAX_CMD_LEN + OS_REDIRECTSTRSIZE);
-
-    /* Make sure that we are able to access this file */
-    fchmod(OS_impl_filehandle_table[file_id].fd, 0666);
-
-    /*
-    ** add in the extra chars necessary to perform the redirection
-    ** 1 for stdout and 2 for stderr. they are redirected to the
-    ** file descriptor passed in
-    */
-    snprintf(LocalCmd, sizeof(LocalCmd), "%s 1>&%d 2>&%d", Cmd, OS_impl_filehandle_table[file_id].fd,
-             OS_impl_filehandle_table[file_id].fd);
-
-    Result = system(LocalCmd);
-
-    if (Result != 0)
-    {
-        return OS_ERROR;
-    }
-    return OS_SUCCESS;
-} /* end OS_ShellOutputToFile_Impl */