Added pfile: store STDIN in a temporary file and pass it to `file`

bin/pfile

@@ -0,0 +1,34 @@
+#!/usr/bin/python
+
+import os
+import subprocess
+import sys
+import tempfile
+
+def stdin_chunk(chunksize):
+    while True:
+        chunk = sys.stdin.read(chunksize)
+        if chunk:
+            yield chunk
+        else:
+            break
+
+if __name__ == '__main__':
+
+    CHUNKSIZE = 8192
+
+    tfile, tname = tempfile.mkstemp()
+
+    for chunk in stdin_chunk(CHUNKSIZE):
+        os.write(tfile, chunk)
+    os.close(tfile)
+
+    p = subprocess.Popen(["file", tname], stdout=subprocess.PIPE)
+    stdout, stderr = p.communicate()
+    os.unlink(tname)
+
+    if stderr:
+        sys.stderr.write(stderr)
+        sys.exit(1)
+    else:
+        sys.stdout.write(stdout)