diff --git a/include/shell/shell_dummy.h b/include/shell/shell_dummy.h
index c39eeb88fca..675d4cddfaa 100644
--- a/include/shell/shell_dummy.h
+++ b/include/shell/shell_dummy.h
@@ -1,4 +1,6 @@
 /*
+ * Shell backend used for testing
+ *
  * Copyright (c) 2018 Nordic Semiconductor ASA
  *
  * SPDX-License-Identifier: Apache-2.0
@@ -17,6 +19,12 @@ extern const struct shell_transport_api shell_dummy_transport_api;
 
 struct shell_dummy {
 	bool initialized;
+
+	/** current number of bytes in buffer (0 if no output) */
+	size_t len;
+
+	/** output buffer to collect shell output */
+	char buf[100];
 };
 
 #define SHELL_DUMMY_DEFINE(_name)					\
@@ -37,6 +45,18 @@ struct shell_dummy {
  */
 const struct shell *shell_backend_dummy_get_ptr(void);
 
+/**
+ * @brief Returns the buffered output in the shell and resets the pointer
+ *
+ * The returned data is always followed by a nul character at position *sizep
+ *
+ * @param shell		Shell pointer
+ * @param sizep		Returns size of data in shell buffer
+ * @returns pointer to buffer containing shell output
+ */
+const char *shell_backend_dummy_get_output(const struct shell *shell,
+					   size_t *sizep);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/subsys/shell/shell_dummy.c b/subsys/shell/shell_dummy.c
index a9c4e9ffe69..bb302399634 100644
--- a/subsys/shell/shell_dummy.c
+++ b/subsys/shell/shell_dummy.c
@@ -1,4 +1,6 @@
 /*
+ * Shell backend used for testing
+ *
  * Copyright (c) 2018 Nordic Semiconductor ASA
  *
  * SPDX-License-Identifier: Apache-2.0
@@ -55,13 +57,22 @@ static int write(const struct shell_transport *transport,
 		 const void *data, size_t length, size_t *cnt)
 {
 	struct shell_dummy *sh_dummy = (struct shell_dummy *)transport->ctx;
+	size_t store_cnt;
 
 	if (!sh_dummy->initialized) {
 		*cnt = 0;
 		return -ENODEV;
 	}
 
+	store_cnt = length;
+	if (sh_dummy->len + store_cnt >= sizeof(sh_dummy->buf)) {
+		store_cnt = sizeof(sh_dummy->buf) - sh_dummy->len - 1;
+	}
+	memcpy(sh_dummy->buf + sh_dummy->len, data, store_cnt);
+	sh_dummy->len += store_cnt;
+
 	*cnt = length;
+
 	return 0;
 }
 
@@ -99,3 +110,16 @@ const struct shell *shell_backend_dummy_get_ptr(void)
 {
 	return &shell_dummy;
 }
+
+const char *shell_backend_dummy_get_output(const struct shell *shell,
+					   size_t *sizep)
+{
+	struct shell_dummy *sh_dummy;
+
+	sh_dummy = (struct shell_dummy *)shell->iface->ctx;
+	sh_dummy->buf[sh_dummy->len] = '\0';
+	*sizep = sh_dummy->len;
+	sh_dummy->len = 0;
+
+	return sh_dummy->buf;
+}