Merge pull request #568 from karthikrev/master

example/pidof.py same as pidof cli tool mentioned in TODO:

examples/pidof.py

@@ -0,0 +1,43 @@
+#!/usr/bin/env python
+
+# Copyright (c) 2009, Giampaolo Rodola', karthikrev. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+
+"""
+A clone of 'pidof' cmdline utility.
+$ pidof  /usr/bin/python
+1140 1138 1136 1134 1133 1129 1127 1125 1121 1120 1119
+"""
+
+from __future__ import print_function
+import psutil
+import sys
+
+
+def pidsof(pgm):
+    pids = []
+    # Iterate on all proccesses and find matching cmdline and get list of
+    # corresponding PIDs
+    for proc in psutil.process_iter():
+        try:
+            cmdline = proc.cmdline()
+            pid = proc.pid
+        except psutil.Error:
+            continue
+        if len(cmdline) > 0 and cmdline[0] == pgm:
+            pids.append(str(pid))
+    return pids
+
+
+def main():
+    if len(sys.argv) != 2:
+        sys.exit('usage: %s pgm_name' % __file__)
+    else:
+        pgmname = sys.argv[1]
+    pids = pidsof(pgmname)
+    print(" ".join(pids))
+
+if __name__ == '__main__':
+    main()