| fstat.1 (6f42902de30e2bf53d1934237b98a0531b9eecea) | fstat.1 (78ef79139e8c399d47736f910c030be5c3554c34) |
|---|---|
| 1.\" Copyright (c) 1987, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 14 unchanged lines hidden (view full) --- 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" @(#)fstat.1 8.3 (Berkeley) 2/25/94 29.\" $FreeBSD$ 30.\" | 1.\" Copyright (c) 1987, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 14 unchanged lines hidden (view full) --- 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" @(#)fstat.1 8.3 (Berkeley) 2/25/94 29.\" $FreeBSD$ 30.\" |
| 31.Dd October 19, 2019 | 31.Dd June 17, 2020 |
| 32.Dt FSTAT 1 33.Os 34.Sh NAME 35.Nm fstat 36.Nd identify active files 37.Sh SYNOPSIS 38.Nm 39.Op Fl fmnsv --- 9 unchanged lines hidden (view full) --- 49A file is considered open by a process if it was explicitly opened, 50is the working directory, root directory, jail root directory, 51active executable text, or kernel trace file for that process. 52If no options are specified, 53.Nm 54reports on all open files in the system. 55.Pp 56The following options are available: | 32.Dt FSTAT 1 33.Os 34.Sh NAME 35.Nm fstat 36.Nd identify active files 37.Sh SYNOPSIS 38.Nm 39.Op Fl fmnsv --- 9 unchanged lines hidden (view full) --- 49A file is considered open by a process if it was explicitly opened, 50is the working directory, root directory, jail root directory, 51active executable text, or kernel trace file for that process. 52If no options are specified, 53.Nm 54reports on all open files in the system. 55.Pp 56The following options are available: |
| 57.Bl -tag -width indent | 57.Bl -tag -width "-N system" |
| 58.It Fl f 59Restrict examination to files open in the same file systems as 60the named file arguments, or to the file system containing the 61current directory if there are no additional filename arguments. 62For example, to find all files open in the file system where the 63directory 64.Pa /usr/src 65resides, type | 58.It Fl f 59Restrict examination to files open in the same file systems as 60the named file arguments, or to the file system containing the 61current directory if there are no additional filename arguments. 62For example, to find all files open in the file system where the 63directory 64.Pa /usr/src 65resides, type |
| 66.Dq Li fstat -f /usr/src . 67.It Fl M | 66.Ql fstat -f /usr/src . 67.It Fl M Ar core |
| 68Extract values associated with the name list from the specified core 69instead of the default 70.Pa /dev/kmem . | 68Extract values associated with the name list from the specified core 69instead of the default 70.Pa /dev/kmem . |
| 71.It Fl N 72Extract the name list from the specified system instead of the default, 73which is the kernel image the system has booted from. | |
| 74.It Fl m 75Include memory-mapped files in the listing; normally these are excluded 76due to the extra processing required. | 71.It Fl m 72Include memory-mapped files in the listing; normally these are excluded 73due to the extra processing required. |
| 74.It Fl N Ar system 75Extract the name list from the specified system instead of the default, 76which is the kernel image the system has booted from. |
|
| 77.It Fl n 78Numerical format. 79Print the device number (maj,min) of the file system 80the file resides in rather than the mount point name; for special 81files, print the 82device number that the special device refers to rather than the filename 83in 84.Pa /dev ; 85and print the mode of the file in octal instead of symbolic form. | 77.It Fl n 78Numerical format. 79Print the device number (maj,min) of the file system 80the file resides in rather than the mount point name; for special 81files, print the 82device number that the special device refers to rather than the filename 83in 84.Pa /dev ; 85and print the mode of the file in octal instead of symbolic form. |
| 86.It Fl p | 86.It Fl p Ar pid |
| 87Report all files open by the specified process. 88.It Fl s 89Print socket endpoint information. | 87Report all files open by the specified process. 88.It Fl s 89Print socket endpoint information. |
| 90.It Fl u | 90.It Fl u Ar user |
| 91Report all files open by the specified user. 92.It Fl v 93Verbose mode. 94Print error messages upon failures to locate particular 95system data structures rather than silently ignoring them. 96Most of 97these data structures are dynamically created or deleted and it is 98possible for them to disappear while --- 4 unchanged lines hidden (view full) --- 103.Nm 104itself is running. 105.It Ar 106Restrict reports to the specified files. 107.El 108.Pp 109The following fields are printed: 110.Bl -tag -width MOUNT | 91Report all files open by the specified user. 92.It Fl v 93Verbose mode. 94Print error messages upon failures to locate particular 95system data structures rather than silently ignoring them. 96Most of 97these data structures are dynamically created or deleted and it is 98possible for them to disappear while --- 4 unchanged lines hidden (view full) --- 103.Nm 104itself is running. 105.It Ar 106Restrict reports to the specified files. 107.El 108.Pp 109The following fields are printed: 110.Bl -tag -width MOUNT |
| 111.It Li USER | 111.It Sy USER |
| 112The username of the owner of the process (effective uid). | 112The username of the owner of the process (effective uid). |
| 113.It Li CMD | 113.It Sy CMD |
| 114The command name of the process. | 114The command name of the process. |
| 115.It Li PID | 115.It Sy PID |
| 116The process id. | 116The process id. |
| 117.It Li FD | 117.It Sy FD |
| 118The file number in the per-process open file table or one of the following 119special names: 120.Pp | 118The file number in the per-process open file table or one of the following 119special names: 120.Pp |
| 121.Bd -literal -offset indent -compact 122jail - jail root directory 123mmap - memory-mapped file 124root - root inode 125text - executable text inode 126tr - kernel trace file 127wd - current working directory 128.Ed | 121.Bl -tag -offset indent -compact 122.It Sy jail 123jail root directory 124.It Sy mmap 125memory-mapped file 126.It Sy root 127root inode 128.It Sy text 129executable text inode 130.It Sy tr 131kernel trace file 132.It Sy wd 133current working directory 134.El |
| 129.Pp | 135.Pp |
| 130If the file number is followed by an asterisk (``*''), the file is 131not an inode, but rather a socket, 132.Tn FIFO , 133or there is an error. | 136If the file number is followed by an asterisk 137.Pq Ql * , 138the file is 139not an inode, but rather a socket, FIFO, or there is an error. |
| 134In this case the remainder of the line does not | 140In this case the remainder of the line does not |
| 135correspond to the remaining headers -- the format of the line | 141correspond to the remaining headers\(em the format of the line |
| 136is described later under 137.Sx SOCKETS . | 142is described later under 143.Sx SOCKETS . |
| 138.It Li MOUNT | 144.It Sy MOUNT |
| 139If the 140.Fl n 141flag was not specified, this header is present and is the 142pathname that the file system the file resides in is mounted on. | 145If the 146.Fl n 147flag was not specified, this header is present and is the 148pathname that the file system the file resides in is mounted on. |
| 143.It Li DEV | 149.It Sy DEV |
| 144If the 145.Fl n 146flag is specified, this header is present and is the 147number of the device that this file resides in. | 150If the 151.Fl n 152flag is specified, this header is present and is the 153number of the device that this file resides in. |
| 148.It Li INUM | 154.It Sy INUM |
| 149The inode number of the file. | 155The inode number of the file. |
| 150.It Li MODE | 156.It Sy MODE |
| 151The mode of the file. 152If the 153.Fl n 154flag is not specified, the mode is printed 155using a symbolic format (see 156.Xr strmode 3 ) ; 157otherwise, the mode is printed 158as an octal number. | 157The mode of the file. 158If the 159.Fl n 160flag is not specified, the mode is printed 161using a symbolic format (see 162.Xr strmode 3 ) ; 163otherwise, the mode is printed 164as an octal number. |
| 159.It Li SZ\&|DV | 165.It Sy SZ\&|DV |
| 160If the file is a semaphore, 161prints the current value of the semaphore. 162If the file is not a character or block special, prints the size of 163the file in bytes. 164Otherwise, if the 165.Fl n 166flag is not specified, prints 167the name of the special file as located in 168.Pa /dev . 169If that cannot be 170located, or the 171.Fl n 172flag is specified, prints the major/minor device 173number that the special device refers to. | 166If the file is a semaphore, 167prints the current value of the semaphore. 168If the file is not a character or block special, prints the size of 169the file in bytes. 170Otherwise, if the 171.Fl n 172flag is not specified, prints 173the name of the special file as located in 174.Pa /dev . 175If that cannot be 176located, or the 177.Fl n 178flag is specified, prints the major/minor device 179number that the special device refers to. |
| 174.It Li R/W | 180.It Sy R/W |
| 175This column describes the access mode that the file allows. | 181This column describes the access mode that the file allows. |
| 176The letter ``r'' indicates open for reading; 177the letter ``w'' indicates open for writing. | 182The letter 183.Ql r 184indicates open for reading; 185the letter 186.Ql w 187indicates open for writing. |
| 178This field is useful when trying to find the processes that are 179preventing a file system from being down graded to read-only. | 188This field is useful when trying to find the processes that are 189preventing a file system from being down graded to read-only. |
| 180.It Li NAME | 190.It Sy NAME |
| 181If filename arguments are specified and the 182.Fl f 183flag is not, then 184this field is present and is the name associated with the given file. 185Normally the name cannot be determined since there is no mapping 186from an open file back to the directory entry that was used to open 187that file. 188Also, since different directory entries may reference 189the same file (via 190.Xr ln 1 ) , 191the name printed may not be the actual 192name that the process originally used to open that file. 193.El 194.Sh SOCKETS 195The formatting of open sockets depends on the protocol domain. 196In all cases the first field is the domain name, the second field | 191If filename arguments are specified and the 192.Fl f 193flag is not, then 194this field is present and is the name associated with the given file. 195Normally the name cannot be determined since there is no mapping 196from an open file back to the directory entry that was used to open 197that file. 198Also, since different directory entries may reference 199the same file (via 200.Xr ln 1 ) , 201the name printed may not be the actual 202name that the process originally used to open that file. 203.El 204.Sh SOCKETS 205The formatting of open sockets depends on the protocol domain. 206In all cases the first field is the domain name, the second field |
| 197is the socket type (stream, dgram, etc), and the third is the socket | 207is the socket type (stream, dgram, etc.), and the third is the socket |
| 198flags field (in hex). 199The remaining fields are protocol dependent. | 208flags field (in hex). 209The remaining fields are protocol dependent. |
| 200For tcp, it is the address of the tcpcb, and for udp, the inpcb (socket pcb). 201For unix domain sockets, its the address of the socket pcb and the address | 210For TCP, it is the address of the tcpcb, and for UDP, the inpcb (socket pcb). 211For UNIX-domain sockets, its the address of the socket pcb and the address |
| 202of the connected pcb (if connected). 203Otherwise the protocol number and address of the socket itself are printed. 204.Pp 205For example, the addresses mentioned above are the addresses which the | 212of the connected pcb (if connected). 213Otherwise the protocol number and address of the socket itself are printed. 214.Pp 215For example, the addresses mentioned above are the addresses which the |
| 206.Dq Li netstat -A 207command would print for tcp, udp, and unixdomain. | 216.Ql netstat -A 217command would print for TCP, UDP, and UNIX-domain. |
| 208Note that since pipes are implemented using sockets, a pipe appears as a | 218Note that since pipes are implemented using sockets, a pipe appears as a |
| 209connected unix domain stream socket. 210A unidirectional unix domain socket indicates the direction of flow with 211an arrow (``<-'' or ``->''), and a full duplex socket shows a double arrow 212(``<->''). | 219connected UNIX-domain stream socket. 220A unidirectional UNIX-domain socket indicates the direction of flow with 221an arrow 222.Po Ql <- 223or 224.Ql -> 225.Pc , 226and a full duplex socket shows a double arrow 227.Pq Ql <-> . |
| 213.Pp 214When the 215.Fl s 216flag is used, socket endpoint information is shown after the address of the 217socket. 218For internet sockets the local and remote addresses are shown, separated with | 228.Pp 229When the 230.Fl s 231flag is used, socket endpoint information is shown after the address of the 232socket. 233For internet sockets the local and remote addresses are shown, separated with |
| 219a double arrow (``<->''). 220For unix/local sockets either the local or remote address is shown, depending | 234a double arrow 235.Pq Ql <-> . 236For UNIX/local sockets either the local or remote address is shown, depending |
| 221on which one is available. 222.Sh SEE ALSO | 237on which one is available. 238.Sh SEE ALSO |
| 239.Xr fuser 1 , |
|
| 223.Xr netstat 1 , 224.Xr nfsstat 1 , 225.Xr procstat 1 , 226.Xr ps 1 , 227.Xr sockstat 1 , 228.Xr systat 1 , 229.Xr tcp 4 , 230.Xr unix 4 , --- 13 unchanged lines hidden --- | 240.Xr netstat 1 , 241.Xr nfsstat 1 , 242.Xr procstat 1 , 243.Xr ps 1 , 244.Xr sockstat 1 , 245.Xr systat 1 , 246.Xr tcp 4 , 247.Xr unix 4 , --- 13 unchanged lines hidden --- |