diff --git a/bin/dataset b/bin/dataset
index 0d915b2..5c7bb83 100755
--- a/bin/dataset
+++ b/bin/dataset
@@ -8,9 +8,9 @@ import re
 PROGRAM_NAME = 'dataset'
 VERSION = '0.1.0'
 
-def show_info(input):
-    name = "N/A"
-    type = "N/A"
+def read_dataset_header(input):
+    name = ""
+    type = ""
     dimensions = []
 
     kv_re = re.compile('^\s*#\s*(\w+)\s*:(.*)$')
@@ -34,17 +34,32 @@ def show_info(input):
             type = v
         elif k == 'dimension':
             values = v.split()
-            dimensions.append((values[0], len(values) - 1))
+            dimensions.append((values[0], values[1:]))
+    
+    return (name, type, dimensions)
+
+def show_info(input):
+    name, type, dimensions = read_dataset_header(input)
 
     print "Name: %s" % name
     print "Type: %s" % type
     print "Dimensions:",
     for i, dim in enumerate(dimensions):
-        print "%s(%i)" % dim,
+        dimname = dim[0]
+        length = len(dim[1])
+        print "%s(%i)" % (dimname, length),
         if i < len(dimensions)-1:
             print "x",
-        
+    print
 
+def list_dimension_ids(input, dimname):
+    name, type, dimensions = read_dataset_header(input)
+    for i, dim in enumerate(dimensions):
+        name, ids = dim
+        if name == dimname:
+            for id in ids:
+                print id
+            
 def parse_options():
     conf_files = ['/etc/fluentsrc',
                   os.path.join(os.environ['HOME'], '.fluents')]
@@ -57,7 +72,7 @@ def parse_options():
                   help='Export as CSV file.')
 
     op.add_option('-d', '--dimension',
-                  action='store_true', default=False,
+                  action='store', default=None,
                   help='Get all identifiers along a dimension.')
 
     op.add_option('-i', '--info',
@@ -96,3 +111,6 @@ if __name__ == '__main__':
         show_info(input)
         sys.exit(0)
 
+    elif options.dimension != None:
+        list_dimension_ids(input, options.dimension)
+