diff --git a/sbysrc/sby.py b/sbysrc/sby.py
index d82b7a3..53212d7 100644
--- a/sbysrc/sby.py
+++ b/sbysrc/sby.py
@@ -19,7 +19,7 @@
 
 import argparse, os, sys, shutil, tempfile
 ##yosys-sys-path##
-from sby_core import SbyJob, SbyAbort
+from sby_core import SbyJob, SbyAbort, process_filename
 from time import localtime
 
 class DictAction(argparse.Action):
@@ -65,6 +65,8 @@ parser.add_argument("--dumpcfg", action="store_true", dest="dump_cfg",
         help="print the pre-processed configuration file")
 parser.add_argument("--dumptasks", action="store_true", dest="dump_tasks",
         help="print the list of tasks")
+parser.add_argument("--dumpfiles", action="store_true", dest="dump_files",
+        help="print the list of source files")
 parser.add_argument("--setup", action="store_true", dest="setupmode",
         help="set up the working directory and exit")
 
@@ -85,6 +87,7 @@ exe_paths = args.exe_paths
 throw_err = args.throw_err
 dump_cfg = args.dump_cfg
 dump_tasks = args.dump_tasks
+dump_files = args.dump_files
 reusedir = False
 setupmode = args.setupmode
 
@@ -110,7 +113,6 @@ if sbyfile is not None:
         print("ERROR: Sby file does not have .sby file extension.", file=sys.stderr)
         sys.exit(1)
 
-
 early_logmsgs = list()
 
 def early_log(workdir, msg):
@@ -234,6 +236,38 @@ if dump_cfg:
     print("\n".join(sbyconfig))
     sys.exit(0)
 
+if dump_files:
+    file_set = set()
+
+    def find_files(taskname):
+        sbyconfig, _ = read_sbyconfig(sbydata, taskname)
+
+        start_index = -1
+        for i in range(len(sbyconfig)):
+            if sbyconfig[i].strip() == "[files]":
+                start_index = i
+                break
+
+        if start_index == -1:
+            return
+
+        for line in sbyconfig[start_index+1:]:
+            line = line.strip()
+            if line.startswith("["):
+                break
+            if line == "" or line.startswith("#"):
+                continue
+            filename = line.split()[-1]
+            file_set.add(process_filename(filename))
+    
+    if len(tasknames):
+        for taskname in tasknames:
+            find_files(taskname)
+    else:
+        find_files(None)
+    print("\n".join(file_set))
+    sys.exit(0)
+
 if len(tasknames) == 0:
     _, tasknames = read_sbyconfig(sbydata, None)
     if len(tasknames) == 0:
diff --git a/sbysrc/sby_core.py b/sbysrc/sby_core.py
index a66ea14..54e6c17 100644
--- a/sbysrc/sby_core.py
+++ b/sbysrc/sby_core.py
@@ -37,6 +37,14 @@ if os.name == "posix":
 signal.signal(signal.SIGINT, force_shutdown)
 signal.signal(signal.SIGTERM, force_shutdown)
 
+def process_filename(filename):
+    if filename.startswith("~/"):
+        filename = os.environ['HOME'] + filename[1:]
+
+    filename = os.path.expandvars(filename)
+
+    return filename
+
 class SbyTask:
     def __init__(self, job, info, deps, cmdline, logfile=None, logstderr=True):
         self.running = False
@@ -290,8 +298,7 @@ class SbyJob:
                 self.error("destination filename must be a relative path without /../: %s" % dstfile)
             dstfile = self.workdir + "/src/" + dstfile
 
-            if srcfile.startswith("~/"):
-                srcfile = os.environ['HOME'] + srcfile[1:]
+            srcfile = process_filename(srcfile)
 
             basedir = os.path.dirname(dstfile)
             if basedir != "" and not os.path.exists(basedir):