Useful utility script to automatically purge files in any directory older than

a certain age in days (defaults to 30).

exec/purgefiles.js

+// purgefiles.js
+
+const default_max_age=30;	// days
+
+argn=0;
+if((max_age=parseInt(argv[argn]))>0)
+	argn++;
+else
+	max_age=default_max_age;
+
+if(argc==argn) {
+	printf("\nusage: purgfiles.js [max_age_in_days] <directory/pattern>\n");
+	printf("\ndefault max_age_in_days = %lu\n",default_max_age);
+	exit();
+}
+
+
+printf("Getting directory of %s", argv[argn]);
+files = directory(argv[argn]);
+printf("\n%lu files\n",files.length);
+
+printf("\nPurging files aged more than %lu days\n",max_age);
+purged_files=0;
+now = time();
+for(i in files) {
+	t=file_date(files[i]);
+	age=(now-t)/(24*60*60);
+	if(age <= max_age)
+		continue;
+	print(system.datestr(t) + " " + files[i]);
+	if(!file_remove(files[i])) {
+		log("!Error " + errno + " removing " + files[i]);
+		continue;
+	}
+	purged_files++;
+}
+
+printf("%lu files purged.\n",purged_files);
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