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diff --git a/man-pages-posix-2003/man1p/tty.1p b/man-pages-posix-2003/man1p/tty.1p new file mode 100644 index 0000000..165b325 --- /dev/null +++ b/man-pages-posix-2003/man1p/tty.1p @@ -0,0 +1,152 @@ +.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved +.TH "TTY" 1P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual" +.\" tty +.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 +tty \- return user's terminal name +.SH SYNOPSIS +.LP +\fBtty\fP +.SH DESCRIPTION +.LP +The \fItty\fP utility shall write to the standard output the name +of the terminal that is open as standard input. The name that +is used shall be equivalent to the string that would be returned by +the \fIttyname\fP() +function defined in the System Interfaces volume of IEEE\ Std\ 1003.1-2001. +.SH OPTIONS +.LP +The \fItty\fP utility shall conform to the Base Definitions volume +of IEEE\ Std\ 1003.1-2001, Section 12.2, Utility Syntax Guidelines. +.SH OPERANDS +.LP +None. +.SH STDIN +.LP +While no input is read from standard input, standard input shall be +examined to determine whether or not it is a terminal, and, +if so, to determine the name of the terminal. +.SH INPUT FILES +.LP +None. +.SH ENVIRONMENT VARIABLES +.LP +The following environment variables shall affect the execution of +\fItty\fP: +.TP 7 +\fILANG\fP +Provide a default value for the internationalization variables that +are unset or null. (See the Base Definitions volume of +IEEE\ Std\ 1003.1-2001, Section 8.2, Internationalization Variables +for +the precedence of internationalization variables used to determine +the values of locale categories.) +.TP 7 +\fILC_ALL\fP +If set to a non-empty string value, override the values of all the +other internationalization variables. +.TP 7 +\fILC_CTYPE\fP +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). +.TP 7 +\fILC_MESSAGES\fP +Determine the locale that should be used to affect the format and +contents of diagnostic messages written to standard error and +informative messages written to standard output. +.TP 7 +\fINLSPATH\fP +Determine the location of message catalogs for the processing of \fILC_MESSAGES +\&.\fP +.sp +.SH ASYNCHRONOUS EVENTS +.LP +Default. +.SH STDOUT +.LP +If standard input is a terminal device, a pathname of the terminal +as specified by the \fIttyname\fP() function defined in the System +Interfaces volume of IEEE\ Std\ 1003.1-2001 +shall be written in the following format: +.sp +.RS +.nf + +\fB"%s\\n", <\fP\fIterminal name\fP\fB> +\fP +.fi +.RE +.LP +Otherwise, a message shall be written indicating that standard input +is not connected to a terminal. In the POSIX locale, the +\fItty\fP utility shall use the format: +.sp +.RS +.nf + +\fB"not a tty\\n" +\fP +.fi +.RE +.SH STDERR +.LP +The standard error shall be used only for diagnostic messages. +.SH OUTPUT FILES +.LP +None. +.SH EXTENDED DESCRIPTION +.LP +None. +.SH EXIT STATUS +.LP +The following exit values shall be returned: +.TP 7 +\ 0 +Standard input is a terminal. +.TP 7 +\ 1 +Standard input is not a terminal. +.TP 7 +>1 +An error occurred. +.sp +.SH CONSEQUENCES OF ERRORS +.LP +Default. +.LP +\fIThe following sections are informative.\fP +.SH APPLICATION USAGE +.LP +This utility checks the status of the file open as standard input +against that of an implementation-defined set of files. It is +possible that no match can be found, or that the match found need +not be the same file as that which was opened for standard input +(although they are the same device). +.SH EXAMPLES +.LP +None. +.SH RATIONALE +.LP +None. +.SH FUTURE DIRECTIONS +.LP +None. +.SH SEE ALSO +.LP +The System Interfaces volume of IEEE\ Std\ 1003.1-2001, \fIisatty\fP(), +\fIttyname\fP() +.SH COPYRIGHT +Portions of this text are reprinted and reproduced in electronic form +from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology +-- Portable Operating System Interface (POSIX), The Open Group Base +Specifications Issue 6, Copyright (C) 2001-2003 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 . |