ipcmk: add page (#2973)

pages/linux/ipcmk.md

@@ -0,0 +1,19 @@
+# ipcmk
+
+> Create IPC (Inter-process Communication) resources.
+
+- Create a shared memory segment:
+
+`ipcmk --shmem {{segment_size_in_bytes}}`
+
+- Create a semaphore:
+
+`ipcmk --semaphore {{element_size}}`
+
+- Create a message queue:
+
+`ipcmk --queue`
+
+- Create a shared memory segment with specific permissions (default is 0644):
+
+`ipcmk --shmem {{segment_size_in_bytes}} {{octal_permissons}}`