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How do you find out when a file was last accessed in Linux?
You can use -mtime option. It returns list of file if the file was last accessed N*24 hours ago. For example to find file in last 2 months (60 days) you need to use -mtime +60 option. -mtime +60 means you are looking for a file modified 60 days ago.
How do you find the number of files being used by a PID or a user?
In this quick post, I will explain how to to count how many file descriptors are currently in use on your Linux server system.
- Step # 1 Find Out PID. To find out PID for mysqld process, enter:
- Step # 2 List File Opened By a PID # 28290.
- Tip: Count All Open File Handles.
- More about /proc/PID/file & procfs File System.
How do I find the PID of a file in Linux?
How do I get the pid number for particular process on a Linux operating systems using bash shell? The easiest way to find out if process is running is run ps aux command and grep process name. If you got output along with process name/pid, your process is running.
How to check access to a file in Linux?
Use inotifywait. inotifywait -me access /path/to will print a line /path/to/ ACCESS file when someone reads file. This interface won’t tell you who accessed the file; you can call lsof /path/to/file as soon as this line appears, but there’s a race condition (the access may be over by the time lsof gets going).
How to find out which user accessed a particular file?
You can use lsof to list processes which currently use a file. But you might not see processes of other users if your user has insufficient privileges (you can see all processes if you are root).
How to monitor and track who accessed a folder on your computer?
When you’ll select the Add button a dialog box will appear asking you to select a user or a group, just type in “users” and click Check names. Now click OK and you’ll get a dialog box to select what you want to watch for this folder, just select the Full control option to keep a log of everything in the log file.
How to find out when a file was last accessed?
You can use stat to find out when a file was last accessed. This is only possible if your file system stores the atime of inodes. But this does not tell you who accessed the file. You can use lsof to list processes which currently use a file.