linux inotifywait 下监控是否有IO
帮助:
JDU:/host-001e67a8d50b /log/today # inotifywait -h inotifywait 3.14 Wait 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
示例:
JDU:aSV/host-001e67a8d50b /sf # inotifywait -rme access,modify,open,close /sf/data/vs_rep2/images/ Setting up watches. Beware: since -r was given, this may take a while! Watches established. /sf/data/vs_rep2/images/ OPEN,ISDIR /sf/data/vs_rep2/images/ CLOSE_NOWRITE,CLOSE,ISDIR /sf/data/vs_rep2/images/ OPEN,ISDIR cluster /sf/data/vs_rep2/images/cluster/ OPEN,ISDIR /sf/data/vs_rep2/images/ CLOSE_NOWRITE,CLOSE,ISDIR cluster /sf/data/vs_rep2/images/cluster/ CLOSE_NOWRITE,CLOSE,ISDIR