mirror of https://github.com/mkerrisk/man-pages
138 lines
3.5 KiB
Groff
138 lines
3.5 KiB
Groff
.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
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.TH "TYPE" 1P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
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.\" type
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.SH NAME
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type \- write a description of command type
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.SH SYNOPSIS
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.LP
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\fBtype\fP \fIname\fP\fB... \fP
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.SH DESCRIPTION
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.LP
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The \fItype\fP utility shall indicate how each argument would be interpreted
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if used as a command name.
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.SH OPTIONS
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.LP
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None.
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.SH OPERANDS
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.LP
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The following operand shall be supported:
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.TP 7
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\fIname\fP
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A name to be interpreted.
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.sp
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.SH STDIN
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.LP
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Not used.
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.SH INPUT FILES
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.LP
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None.
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.SH ENVIRONMENT VARIABLES
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.LP
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The following environment variables shall affect the execution of
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\fItype\fP:
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.TP 7
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\fILANG\fP
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Provide a default value for the internationalization variables that
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are unset or null. (See the Base Definitions volume of
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IEEE\ Std\ 1003.1-2001, Section 8.2, Internationalization Variables
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for
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the precedence of internationalization variables used to determine
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the values of locale categories.)
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.TP 7
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\fILC_ALL\fP
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If set to a non-empty string value, override the values of all the
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other internationalization variables.
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.TP 7
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\fILC_CTYPE\fP
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Determine the locale for the interpretation of sequences of bytes
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of text data as characters (for example, single-byte as
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opposed to multi-byte characters in arguments).
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.TP 7
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\fILC_MESSAGES\fP
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Determine the locale that should be used to affect the format and
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contents of diagnostic messages written to standard
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error.
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.TP 7
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\fINLSPATH\fP
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Determine the location of message catalogs for the processing of \fILC_MESSAGES
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\&.\fP
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.TP 7
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\fIPATH\fP
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Determine the location of \fIname\fP, as described in the Base Definitions
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volume of IEEE\ Std\ 1003.1-2001, Chapter 8, Environment Variables.
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.sp
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.SH ASYNCHRONOUS EVENTS
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.LP
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Default.
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.SH STDOUT
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.LP
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The standard output of \fItype\fP contains information about each
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operand in an unspecified format. The information provided
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typically identifies the operand as a shell built-in, function, alias,
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or keyword, and where applicable, may display the operand's
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pathname.
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.SH STDERR
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.LP
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The standard error shall be used only for diagnostic messages.
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.SH OUTPUT FILES
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.LP
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None.
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.SH EXTENDED DESCRIPTION
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.LP
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None.
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.SH EXIT STATUS
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.LP
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The following exit values shall be returned:
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.TP 7
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\ 0
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Successful completion.
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.TP 7
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>0
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An error occurred.
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.sp
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.SH CONSEQUENCES OF ERRORS
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.LP
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Default.
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.LP
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\fIThe following sections are informative.\fP
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.SH APPLICATION USAGE
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.LP
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Since \fItype\fP must be aware of the contents of the current shell
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execution environment (such as the lists of commands,
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functions, and built-ins processed by \fIhash\fP), it is always provided
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as a shell regular
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built-in. If it is called in a separate utility execution environment,
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such as one of the following:
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.sp
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.RS
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.nf
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\fBnohup type writer
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find . -type f | xargs type
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\fP
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.fi
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.RE
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it might not produce accurate results.
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.SH EXAMPLES
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.LP
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None.
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.SH RATIONALE
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.LP
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None.
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.SH FUTURE DIRECTIONS
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.LP
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None.
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.SH SEE ALSO
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.LP
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\fIcommand\fP , \fIhash\fP
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.SH COPYRIGHT
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Portions of this text are reprinted and reproduced in electronic form
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from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
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-- Portable Operating System Interface (POSIX), The Open Group Base
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Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
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Electrical and Electronics Engineers, Inc and The Open Group. In the
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event of any discrepancy between this version and the original IEEE and
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The Open Group Standard, the original IEEE and The Open Group Standard
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is the referee document. The original Standard can be obtained online at
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http://www.opengroup.org/unix/online.html .
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