FUSER(1) FUSER(1) (NAME) fuser - (SYNOPSIS) fuser [-fuv] [-a|-s] [-4|-6] [-c|-m|-n space] [ -k [-i] [-M] [-w] [-SIGNAL] ] name ... fuser -l fuser -V (DESCRIPTION) fuser (PID) . : c . e . f . f . F . F . r . m mmap . . (placeholder) . fuser . fuser . TCP UDP -n . fuser IPv6 IPv4 . -4 -6 . () . : [lcl_port][,[rmt_host][,[rmt_port]]] IP . fuser PID (stdout) (stderr) . (OPTIONS) -a, --all . . -c -m POSIX . -f POSIX . -k, --kill . -SIGNAL SIGKILL . fuser fuser . (effective user ID) fuser (real user ID) . -i, --interactive . -k . -I, --inode file (inodes) () . -l, --list-signals . -m NAME, --mount NAME NAME . . NAME/ . -M, --ismountpoint NAME (mountpoint) . NAME . -w . -k . -n NAMESPACE, --namespace NAMESPACE . file ( ) udp ( UDP ) tcp ( TCP ) . . name/space ( 80/tcp) . -s, --silent . -u -v . -a -s . -SIGNAL SIGKILL . ( -HUP) ( -1) . -k . -u, --user PID. -v, --verbose (verbose). ps . PID USER COMMAND ps . ACCESS . (mount point) knfs (swap) . PID kernel . -V, --version . -4, --ipv4 IPv4. -6 tcp udp . -6, --ipv6 IPv6. -4 tcp udp . (FILES) /proc proc (EXAMPLES) fuser -km /home /home (). if fuser -s /dev/ttyS1; then :; else command; fi /dev/ttyS1 command . fuser telnet/tcp () TELNET . (RESTRICTIONS) . . fuser ( ) . . fuser (file descriptor table) . TCP UDP fuser (non-root) . fuser . fuser SUID root . udp tcp (UNIX domain sockets) 1.3.78 . -v . -k . fuser . fuser (mount namespace) . fuser . (BUGS) fuser -m /dev/sgX ( -k ) . . -m -M . fuser btrfs(5) stat(2) /proc//maps . (SEE ALSO) kill(1), killall(1), stat(2), btrfs(5), lsof(8), mount_namespaces(7), pkill(1), ps(1), kill(2) psmisc 2022-11-02 FUSER(1)