diff --git a/do_cmd.py b/do_cmd.py
index 10e573b..4a40c66 100644
--- a/do_cmd.py
+++ b/do_cmd.py
@@ -2,6 +2,5 @@ import os
 
 from voussoirkit import pipeable
 
-
-for line in pipeable.go():
+for line in pipeable.go(strip=True, skip_blank=True):
     os.system(line)
diff --git a/eval.py b/eval.py
index 3928aa3..f0d2dcf 100644
--- a/eval.py
+++ b/eval.py
@@ -1,3 +1,4 @@
+import argparse
 import glob
 import math
 import os
@@ -7,10 +8,6 @@ import sys
 
 from voussoirkit import pipeable
 
-
-lines = pipeable.input(sys.argv[1])
-pattern = sys.argv[2]
-
 def quote(s):
     return '"%s"' % s
 
@@ -23,6 +20,20 @@ def random_hex(length=12):
     token = token[:length]
     return token
 
-for line in lines:
-    x = line
-    pipeable.output(eval(pattern))
+def eval_argparse(args):
+    for line in pipeable.input(args.lines):
+        x = line
+        pipeable.output(eval(args.eval_string))
+
+def main(argv):
+    parser = argparse.ArgumentParser(description=__doc__)
+
+    parser.add_argument('lines')
+    parser.add_argument('eval_string')
+    parser.set_defaults(func=eval_argparse)
+
+    args = parser.parse_args(argv)
+    return args.func(args)
+
+if __name__ == '__main__':
+    raise SystemExit(main(sys.argv[1:]))
diff --git a/forline.py b/forline.py
deleted file mode 100644
index e21fe63..0000000
--- a/forline.py
+++ /dev/null
@@ -1,14 +0,0 @@
-import os
-import sys
-
-from voussoirkit import clipext
-
-text = sys.argv[1]
-command = sys.argv[2:]
-command = ['"%s"' % x if (' ' in x or x == '%x') else x for x in command]
-command = ' '.join(command)
-text = clipext.resolve(text)
-
-for line in text.splitlines():
-    thiscomm = command.replace('%x', line)
-    os.system(thiscomm)