1TYPE(P) POSIX Programmer's Manual TYPE(P)
2
6 type - write a description of command type
7
9 type name...
10
12 The type utility shall indicate how each argument would be interpreted
13 if used as a command name.
14
16 None.
17
19 The following operand shall be supported:
20 name A name to be interpreted.
22
25 Not used.
26
28 None.
29
31 The following environment variables shall affect the execution of type:
32 LANG Provide a default value for the internationalization variables
34 that are unset or null. (See the Base Definitions volume of
35 IEEE Std 1003.1-2001, Section 8.2, Internationalization Vari‐
36 ables for the precedence of internationalization variables used
37 to determine the values of locale categories.)
38 LC_ALL If set to a non-empty string value, override the values of all
40 the other internationalization variables.
41 LC_CTYPE
43 Determine the locale for the interpretation of sequences of
44 bytes of text data as characters (for example, single-byte as
45 opposed to multi-byte characters in arguments).
46 LC_MESSAGES
48 Determine the locale that should be used to affect the format
49 and contents of diagnostic messages written to standard error.
50 NLSPATH
52 Determine the location of message catalogs for the processing of
53 LC_MESSAGES .
54 PATH Determine the location of name, as described in the Base Defini‐
56 tions volume of IEEE Std 1003.1-2001, Chapter 8, Environment
57 Variables.
58
61 Default.
62
64 The standard output of type contains information about each operand in
65 an unspecified format. The information provided typically identifies
66 the operand as a shell built-in, function, alias, or keyword, and where
67 applicable, may display the operand's pathname.
68
70 The standard error shall be used only for diagnostic messages.
71
73 None.
74
76 None.
77
79 The following exit values shall be returned:
80 0 Successful completion.
82 >0 An error occurred.
84
87 Default.
88 The following sections are informative.
90
92 Since type must be aware of the contents of the current shell execution
93 environment (such as the lists of commands, functions, and built-ins
94 processed by hash), it is always provided as a shell regular built-in.
95 If it is called in a separate utility execution environment, such as
96 one of the following:
97 nohup type writer
100 find . -type f | xargs type
101 it might not produce accurate results.
102
104 None.
105
107 None.
108
110 None.
111
113 command , hash
114
116 Portions of this text are reprinted and reproduced in electronic form
117 from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
118 -- Portable Operating System Interface (POSIX), The Open Group Base
119 Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
120 Electrical and Electronics Engineers, Inc and The Open Group. In the
121 event of any discrepancy between this version and the original IEEE and
122 The Open Group Standard, the original IEEE and The Open Group Standard
123 is the referee document. The original Standard can be obtained online
124 at http://www.opengroup.org/unix/online.html .
125IEEE/The Open Group 2003 TYPE(P)