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diff --git a/man-pages-posix-2017/man1p/fuser.1p b/man-pages-posix-2017/man1p/fuser.1p new file mode 100644 index 0000000..3d43713 --- /dev/null +++ b/man-pages-posix-2017/man1p/fuser.1p @@ -0,0 +1,249 @@ +'\" et +.TH FUSER "1P" 2017 "IEEE/The Open Group" "POSIX Programmer's Manual" +.\" +.SH PROLOG +This manual page is part of the POSIX Programmer's Manual. +The Linux implementation of this interface may differ (consult +the corresponding Linux manual page for details of Linux behavior), +or the interface may not be implemented on Linux. +.\" +.SH NAME +fuser +\(em list process IDs of all processes that have one or more files open +.SH SYNOPSIS +.LP +.nf +fuser \fB[\fR-cfu\fB] \fIfile\fR... +.fi +.SH DESCRIPTION +The +.IR fuser +utility shall write to standard output the process IDs of processes +running on the local system that have one or more named files open. +For block special devices, all processes using any file on that device +are listed. +.P +The +.IR fuser +utility shall write to standard error additional information about the +named files indicating how the file is being used. +.P +Any output for processes running on remote systems that have a named +file open is unspecified. +.P +A user may need appropriate privileges to invoke the +.IR fuser +utility. +.SH OPTIONS +The +.IR fuser +utility shall conform to the Base Definitions volume of POSIX.1\(hy2017, +.IR "Section 12.2" ", " "Utility Syntax Guidelines". +.P +The following options shall be supported: +.IP "\fB\-c\fR" 10 +The file is treated as a mount point and the utility shall report +on any files open in the file system. +.IP "\fB\-f\fR" 10 +The report shall be only for the named files. +.IP "\fB\-u\fR" 10 +The user name, in parentheses, associated with each process ID written +to standard output shall be written to standard error. +.SH OPERANDS +The following operand shall be supported: +.IP "\fIfile\fP" 10 +A pathname on which the file or file system is to be reported. +.SH STDIN +Not used. +.SH "INPUT FILES" +The user database. +.SH "ENVIRONMENT VARIABLES" +The following environment variables shall affect the execution of +.IR fuser : +.IP "\fILANG\fP" 10 +Provide a default value for the internationalization variables that are +unset or null. (See the Base Definitions volume of POSIX.1\(hy2017, +.IR "Section 8.2" ", " "Internationalization Variables" +for the precedence of internationalization variables used to determine +the values of locale categories.) +.IP "\fILC_ALL\fP" 10 +If set to a non-empty string value, override the values of all the +other internationalization variables. +.IP "\fILC_CTYPE\fP" 10 +Determine the locale for the interpretation of sequences of bytes of +text data as characters (for example, single-byte as opposed to +multi-byte characters in arguments). +.IP "\fILC_MESSAGES\fP" 10 +.br +Determine the locale that should be used to affect the format and +contents of diagnostic messages written to standard error. +.IP "\fINLSPATH\fP" 10 +Determine the location of message catalogs for the processing of +.IR LC_MESSAGES . +.SH "ASYNCHRONOUS EVENTS" +Default. +.SH STDOUT +The +.IR fuser +utility shall write the process ID for each process using each file +given as an operand to standard output in the following format: +.sp +.RS 4 +.nf + +"%d", <\fIprocess_id\fR> +.fi +.P +.RE +.SH STDERR +The +.IR fuser +utility shall write diagnostic messages to standard error. +.P +The +.IR fuser +utility also shall write the following to standard error: +.IP " *" 4 +The pathname of each named file is written followed immediately by a +<colon>. +.IP " *" 4 +For each process ID written to standard output, the character +.BR 'c' +shall be written to standard error if the process is using the file as +its current directory and the character +.BR 'r' +shall be written to standard error if the process is using the file as +its root directory. Implementations may write other alphabetic +characters to indicate other uses of files. +.IP " *" 4 +When the +.BR \-u +option is specified, characters indicating the use of the file shall be +followed immediately by the user name, in parentheses, corresponding to +the real user ID of the process. If the user name cannot be resolved from +the real user ID of the process, the real user ID of the process shall +be written instead of the user name. +.P +When standard output and standard error are directed to the same file, +the output shall be interleaved so that the filename appears at the +start of each line, followed by the process ID and characters +indicating the use of the file. Then, if the +.BR \-u +option is specified, the user name or user ID for each process using +that file shall be written. +.P +A +<newline> +shall be written to standard error after the last output +described above for each +.IR file +operand. +.SH "OUTPUT FILES" +None. +.SH "EXTENDED DESCRIPTION" +None. +.SH "EXIT STATUS" +The following exit values shall be returned: +.IP "\00" 6 +Successful completion. +.IP >0 6 +An error occurred. +.SH "CONSEQUENCES OF ERRORS" +Default. +.LP +.IR "The following sections are informative." +.SH "APPLICATION USAGE" +None. +.SH EXAMPLES +The command: +.sp +.RS 4 +.nf + +fuser -fu . +.fi +.P +.RE +.P +writes to standard output the process IDs of processes that are using +the current directory and writes to standard error an indication of how +those processes are using the directory and the user names associated +with the processes that are using the current directory. +.sp +.RS 4 +.nf + +fuser -c <\fImount point\fR> +.fi +.P +.RE +.P +writes to standard output the process IDs of processes that are using +any file in the file system which is mounted on <\fImount point\fR> +and writes to standard error an indication of how those processes are +using the files. +.sp +.RS 4 +.nf + +fuser <\fImount point\fR> +.fi +.P +.RE +.P +writes to standard output the process IDs of processes that are using +the file which is named by <\fImount point\fR> and writes to standard +error an indication of how those processes are using the file. +.sp +.RS 4 +.nf + +fuser <\fIblock device\fR> +.fi +.P +.RE +.P +writes to standard output the process IDs of processes that are using +any file which is on the device named by <\fIblock device\fR> and +writes to standard error an indication of how those processes are using +the file. +.sp +.RS 4 +.nf + +fuser -f <\fIblock device\fR> +.fi +.P +.RE +.P +writes to standard output the process IDs of processes that are using +the file <\fIblock device\fR> itself and writes to standard error an +indication of how those processes are using the file. +.SH RATIONALE +The definition of the +.IR fuser +utility follows existing practice. +.SH "FUTURE DIRECTIONS" +None. +.SH "SEE ALSO" +The Base Definitions volume of POSIX.1\(hy2017, +.IR "Chapter 8" ", " "Environment Variables", +.IR "Section 12.2" ", " "Utility Syntax Guidelines" +.\" +.SH COPYRIGHT +Portions of this text are reprinted and reproduced in electronic form +from IEEE Std 1003.1-2017, Standard for Information Technology +-- Portable Operating System Interface (POSIX), The Open Group Base +Specifications Issue 7, 2018 Edition, +Copyright (C) 2018 by the Institute of +Electrical and Electronics Engineers, Inc and The Open Group. +In the event of any discrepancy between this version and the original IEEE and +The Open Group Standard, the original IEEE and The Open Group Standard +is the referee document. The original Standard can be obtained online at +http://www.opengroup.org/unix/online.html . +.PP +Any typographical or formatting errors that appear +in this page are most likely +to have been introduced during the conversion of the source files to +man page format. To report such errors, see +https://www.kernel.org/doc/man-pages/reporting_bugs.html . |