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[操作系统]linux下监控是否有IO


JDU:/host-001e67a8d50b /log/today # inotifywait -hinotifywait 3.14Wait for a particular event on a file or set of files.Usage: inotifywait [ options ] file1 [ file2 ] [ file3 ] [ ... ]Options:	-h|--help   	Show this help text.	@<file>    	Exclude the specified file from being watched.	--exclude <pattern>	       	Exclude all events on files matching the	       	extended regular expression <pattern>.	--excludei <pattern>	       	Like --exclude but case insensitive.	-m|--monitor 	Keep listening for events forever. Without	       	this option, inotifywait will exit after one	       	event is received.	-d|--daemon  	Same as --monitor, except run in the background	       	logging events to a file specified by --outfile.	       	Implies --syslog.	-r|--recursive	Watch directories recursively.	--fromfile <file>	       	Read files to watch from <file> or `-' for stdin.	-o|--outfile <file>            Print events to <file> rather than stdout.	-s|--syslog  	Send errors to syslog rather than stderr.	-q|--quiet  	Print less (only print events).	-qq      	Print nothing (not even events).	--format <fmt>	Print using a specified printf-like format	       	string; read the man page for more details.	--timefmt <fmt>	strftime-compatible format string for use with	       	%T in --format string.	-c|--csv   	Print events in CSV format.    -t|--timeout <seconds>	       	When listening for a single event, time out after	       	waiting for an event for <seconds> seconds.	       	If <seconds> is 0, inotifywait will never time out.	-e|--event <event1> [ -e|--event <event2> ... ]		Listen for specific event(s). If omitted, all events are 		listened for.    Exit status:	0 - An event you asked to watch for was received.	1 - An event you did not ask to watch for was received	2 - The --timeout option was given and no events occurred	   in the specified interval of time.Events:	access		file or directory contents were read	modify		file or directory contents were written	attrib		file or directory attributes changed    close_write	file or directory closed, after being opened in writable mode	close_nowrite	file or directory closed, after being opened in read-only mode    close		file or directory closed, regardless of read/write mode	open		file or directory opened	moved_to	file or directory moved to watched directory	moved_from	file or directory moved from watched directory    move		file or directory moved to or from watched directory	create		file or directory created within watched directory	delete		file or directory deleted within watched directory	delete_self	file or directory was deleted	unmount		file system containing file or directory unmounted