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23 <script language="JavaScript" src="../jscript/codes.js"></script><basefont size="3">
24 <center><font size="2">The Open Group Base Specifications Issue 8<br>
25 IEEE Std 1003.1-2024<br>
26 Copyright © 2001-2024 The IEEE and The Open Group</font></center>
27 <hr size="2" noshade>
28 <a name="top" id="top"></a> <a name="type" id="type"></a> <a name="tag_20_130" id="tag_20_130"></a><!-- type -->
29 <h4 class="mansect"><a name="tag_20_130_01" id="tag_20_130_01"></a>NAME</h4>
30 <blockquote>type — write a description of command type</blockquote>
31 <h4 class="mansect"><a name="tag_20_130_02" id="tag_20_130_02"></a>SYNOPSIS</h4>
32 <blockquote class="synopsis">
33 <div class="box"><code><tt><sup>[<a href="javascript:open_code('XSI')">XSI</a>]</sup> <img src="../images/opt-start.gif" alt=
34 "[Option Start]" border="0"> type</tt> <i>name</i><tt>... <img src="../images/opt-end.gif" alt="[Option End]" border=
35 "0"></tt></code></div>
36 </blockquote>
37 <h4 class="mansect"><a name="tag_20_130_03" id="tag_20_130_03"></a>DESCRIPTION</h4>
38 <blockquote>
39 <p>The <i>type</i> utility shall indicate how each argument would be interpreted if used as a command name.</p>
40 </blockquote>
41 <h4 class="mansect"><a name="tag_20_130_04" id="tag_20_130_04"></a>OPTIONS</h4>
42 <blockquote>
43 <p>None.</p>
44 </blockquote>
45 <h4 class="mansect"><a name="tag_20_130_05" id="tag_20_130_05"></a>OPERANDS</h4>
46 <blockquote>
47 <p>The following operand shall be supported:</p>
48 <dl compact>
49 <dd></dd>
50 <dt><i>name</i></dt>
51 <dd>A name to be interpreted.</dd>
52 </dl>
53 </blockquote>
54 <h4 class="mansect"><a name="tag_20_130_06" id="tag_20_130_06"></a>STDIN</h4>
55 <blockquote>
56 <p>Not used.</p>
57 </blockquote>
58 <h4 class="mansect"><a name="tag_20_130_07" id="tag_20_130_07"></a>INPUT FILES</h4>
59 <blockquote>
60 <p>None.</p>
61 </blockquote>
62 <h4 class="mansect"><a name="tag_20_130_08" id="tag_20_130_08"></a>ENVIRONMENT VARIABLES</h4>
63 <blockquote>
64 <p>The following environment variables shall affect the execution of <i>type</i>:</p>
65 <dl compact>
66 <dd></dd>
67 <dt><i>LANG</i></dt>
68 <dd>Provide a default value for the internationalization variables that are unset or null. (See XBD <a href=
69 "../basedefs/V1_chap08.html#tag_08_02"><i>8.2 Internationalization Variables</i></a> for the precedence of internationalization
70 variables used to determine the values of locale categories.)</dd>
71 <dt><i>LC_ALL</i></dt>
72 <dd>If set to a non-empty string value, override the values of all the other internationalization variables.</dd>
73 <dt><i>LC_CTYPE</i></dt>
74 <dd>Determine the locale for the interpretation of sequences of bytes of text data as characters (for example, single-byte as
75 opposed to multi-byte characters in arguments).</dd>
76 <dt><i>LC_MESSAGES</i></dt>
77 <dd><br>
78 Determine the locale that should be used to affect the format and contents of diagnostic messages written to standard error.</dd>
79 <dt><i>NLSPATH</i></dt>
80 <dd>Determine the location of messages objects and message catalogs.</dd>
81 <dt><i>PATH</i></dt>
82 <dd>Determine the location of <i>name</i>, as described in XBD <a href="../basedefs/V1_chap08.html#tag_08"><i>8. Environment
83 Variables</i></a> .</dd>
84 </dl>
85 </blockquote>
86 <h4 class="mansect"><a name="tag_20_130_09" id="tag_20_130_09"></a>ASYNCHRONOUS EVENTS</h4>
87 <blockquote>
88 <p>Default.</p>
89 </blockquote>
90 <h4 class="mansect"><a name="tag_20_130_10" id="tag_20_130_10"></a>STDOUT</h4>
91 <blockquote>
92 <p>The standard output of <i>type</i> contains information about each operand in an unspecified format. The information provided
93 typically identifies the operand as a shell built-in, function, alias, or keyword, and where applicable, may display the operand's
94 pathname.</p>
95 </blockquote>
96 <h4 class="mansect"><a name="tag_20_130_11" id="tag_20_130_11"></a>STDERR</h4>
97 <blockquote>
98 <p>The standard error shall be used only for diagnostic messages.</p>
99 </blockquote>
100 <h4 class="mansect"><a name="tag_20_130_12" id="tag_20_130_12"></a>OUTPUT FILES</h4>
101 <blockquote>
102 <p>None.</p>
103 </blockquote>
104 <h4 class="mansect"><a name="tag_20_130_13" id="tag_20_130_13"></a>EXTENDED DESCRIPTION</h4>
105 <blockquote>
106 <p>None.</p>
107 </blockquote>
108 <h4 class="mansect"><a name="tag_20_130_14" id="tag_20_130_14"></a>EXIT STATUS</h4>
109 <blockquote>
110 <p>The following exit values shall be returned:</p>
111 <dl compact>
112 <dd></dd>
113 <dt> 0</dt>
114 <dd>Successful completion.</dd>
115 <dt>>0</dt>
116 <dd>An error occurred.</dd>
117 </dl>
118 </blockquote>
119 <h4 class="mansect"><a name="tag_20_130_15" id="tag_20_130_15"></a>CONSEQUENCES OF ERRORS</h4>
120 <blockquote>
121 <p>Default.</p>
122 </blockquote>
123 <hr>
124 <div class="box"><em>The following sections are informative.</em></div>
125 <h4 class="mansect"><a name="tag_20_130_16" id="tag_20_130_16"></a>APPLICATION USAGE</h4>
126 <blockquote>
127 <p>This utility is required to be intrinsic. See <a href="../utilities/V3_chap01.html#tag_18_07"><i>1.7 Intrinsic Utilities</i></a>
128 for details.</p>
129 <p>Since <i>type</i> must be aware of the contents of the current shell execution environment (such as the lists of commands,
130 functions, and built-ins processed by <a href="../utilities/hash.html"><i>hash</i></a>), it is always provided as a shell regular
131 built-in. If it is called in a separate utility execution environment, such as one of the following:</p>
132 <pre>
133 <tt>nohup type writer
134 find . -type f -exec type {} +
135 </tt></pre>
136 it might not produce accurate results.</blockquote>
137 <h4 class="mansect"><a name="tag_20_130_17" id="tag_20_130_17"></a>EXAMPLES</h4>
138 <blockquote>
139 <p>None.</p>
140 </blockquote>
141 <h4 class="mansect"><a name="tag_20_130_18" id="tag_20_130_18"></a>RATIONALE</h4>
142 <blockquote>
143 <p>None.</p>
144 </blockquote>
145 <h4 class="mansect"><a name="tag_20_130_19" id="tag_20_130_19"></a>FUTURE DIRECTIONS</h4>
146 <blockquote>
147 <p>If this utility is directed to display a pathname that contains any bytes that have the encoded value of a <newline>
148 character when <newline> is a terminator or separator in the output format being used, implementations are encouraged to
149 treat this as an error. A future version of this standard may require implementations to treat this as an error.</p>
150 </blockquote>
151 <h4 class="mansect"><a name="tag_20_130_20" id="tag_20_130_20"></a>SEE ALSO</h4>
152 <blockquote>
153 <p><a href="../utilities/command.html#"><i>command</i></a> , <a href="../utilities/hash.html#"><i>hash</i></a></p>
154 <p>XBD <a href="../basedefs/V1_chap08.html#tag_08"><i>8. Environment Variables</i></a></p>
155 </blockquote>
156 <h4 class="mansect"><a name="tag_20_130_21" id="tag_20_130_21"></a>CHANGE HISTORY</h4>
157 <blockquote>
158 <p>First released in Issue 2.</p>
159 </blockquote>
160 <h4 class="mansect"><a name="tag_20_130_22" id="tag_20_130_22"></a>Issue 8</h4>
161 <blockquote>
162 <p>Austin Group Defect 248 is applied, changing a command line in the APPLICATION USAGE section.</p>
163 <p>Austin Group Defect 251 is applied, encouraging implementations to report an error if a utility is directed to display a
164 pathname that contains any bytes that have the encoded value of a <newline> character when <newline> is a terminator or
165 separator in the output format being used.</p>
166 <p>Austin Group Defect 854 is applied, adding a note to the APPLICATION USAGE section that this utility is required to be
167 intrinsic.</p>
168 <p>Austin Group Defect 1122 is applied, changing the description of <i>NLSPATH .</i></p>
169 </blockquote>
170 <div class="box"><em>End of informative text.</em></div>
171 <hr>
172 <p> </p>
173 <a href="#top"><span class="topOfPage">return to top of page</span></a><br>
174 <hr size="2" noshade>
175 <center><font size="2">UNIX® is a registered Trademark of The Open Group.<br>
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