FUSER(1) fuser - , fuser [-fuv] [-a|-s] [-4|-6] [-c|-m|-n ] [ -k [-i] [-M] [-w] [-] ] fuser -l fuser -V fuser PID , . PID , : c . e . f . f . F . F . r . m mmap- . . , . fuser , . , fuser . , TCP UDP -n . fuser IPv6 IPv4. -4 -6. . , : [_][,[_][,[_]]] IP- . fuser stdout PID- , stderr. -a, --all , . , . -c , -m, POSIX. -f , POSIX. -k, --kill , . -, SIGKILL. fuser , fuser. ID , fuser, ID. -i, --interactive . , -k. -I, --inode file , . -l, --list-signals . -m , --mount . , . , /, , . -M, --ismountpoint , . , , . -w . , -k. -n , --namespace . file ( , ), udp ( UDP) tcp ( TCP). . , / (, 80/tcp). -s, --silent . -u -v. -a -s. - SIGKILL. (, -HUP) (, -1). , -k. -u, --user PID. -v, --verbose . ps. PID, USER COMMAND ps. ACCESS . , knfs . PID kernel. -V, --version . -4, --ipv4 IPv4. -6 tcp udp. -6, --ipv6 IPv6. -4 tcp udp. /proc proc fuser -km /home , /home . if fuser -s /dev/ttyS1; then :; else ; fi , , /dev/ttyS1. fuser telnet/tcp () TELNET. , , . , . fuser . , , , , . fuser , . TCP UDP , fuser root. fuser , . fuser SUID root , . udp, tcp UNIX , 1.3.78. -v. -k . , fuser . fuser , . - , ID , fuser . fuser -m /dev/sgX ( , -k) , . , . -m , , -M, . fuser will not match mapped files, such as a process' shared libraries if they are on a btrfs(5) filesystem due to the device IDs being different for stat(2) and /proc//maps. 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)