What does lsof mean in Linux?
What does lsof mean in Linux?
LiSt Open Files
This is our ongoing series of Linux commands and in this article, we are going to review lsof command with practical examples. lsof meaning ‘LiSt Open Files’ is used to find out which files are open by which process.
What does lsof command do?
The lsof (list open files) command returns the user processes that are actively using a file system. It is sometimes helpful in determining why a file system remains in use and cannot be unmounted.
What is node in lsof output?
Node: Shows the node number of a local file, or the inode number of an NFS file in the server host, or internet protocol type. It might display STR for a stream or the IRQ or inode number of a Linux AX. 25 socket device. Name: Shows the name of the mount point and file system on which the file resides.
What is the difference between ls and lsof?
It is easy to remember lsof command if you think of it as “ls + of”, where ls stands for list, and of stands for open files. It is a command line utility which is used to list the information about the files that are opened by various processes.
How do I delete deleted files in lsof?
$ lsof /app | grep deleted Will print all deleted files which are claiming disk space. You can just kill the process which is holding the reference of those files and get back your disk space. The command will also print the process id to help you kill the process. You can just kill command for that.
What is lsof Mac?
lsof is a command that can be used to list all the open files. You can use grep to narrow down the listing to only those that match a certain string.
Why does lsof show deleted files?
lsof is used to list all the deleted files which are still on disk due to open file descriptors. Memory is not immediately freed because the running process still has an open file handle to the just-deleted file.
What happens if you run out of inodes?
Effects. The moment a file system runs out of inodes, all new files and folders will be rejected. Until that point, no adverse affects will manifest.
How do I see what ports are listening on my Mac?
Mac OS X: List listening ports and programs using netstat
- -p: show the program name / PID owning the socket.
- -a: show all connections.
- -n: show numerical addresses.
- -t: show only TCP connections.