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--- technical:whitepaper:automated_devshm_cleanup [2018-12-12 15:53] – [Implementation] frey
+++ technical:whitepaper:automated_devshm_cleanup [2018-12-13 13:02] (current) – [Implementation] frey
@@ Line 69: / Line 69: @@
 usage: shm-cleanup.py [-h] [-v] [-q] [-n] [--show-log-timestamps]
                       [--age <age-threshold>] [--no-special-treatment]
-                      [--log-file <filename>]
+                      [--log-file <filename>] [--daemon]
+                      [--daemon-period <period>] [--pid-file <filename>]
 Cleanup /dev/shm
@@ Line 93: / Line 94: @@
                         send all logging to this file instead of to stderr;
                         timestamps are always enabled when logging to a file
+  --daemon              run as a daemon, periodically waking to re-check
+  --daemon-period <period>
+                        wake to re-check on the given period; integer or
+                        floating-point values are acceptable with optional
+                        unit of s/m/h/d (default: s)
+  --pid-file <filename>
+                        in daemon mode, write our pid to this file (default:
+                        /var/run/shm-cleanup.pid)
 </code>
+On systems that lack cron (or a similar timed-execution mechanism), the ''--daemon'' mode may be helpful.