1TYPE(1P) POSIX Programmer's Manual TYPE(1P)
2
6 This manual page is part of the POSIX Programmer's Manual. The Linux
7 implementation of this interface may differ (consult the corresponding
8 Linux manual page for details of Linux behavior), or the interface may
9 not be implemented on Linux.
10
12 type - write a description of command type
13
15 type name...
16
18 The type utility shall indicate how each argument would be interpreted
19 if used as a command name.
20
22 None.
23
25 The following operand shall be supported:
26 name A name to be interpreted.
28
31 Not used.
32
34 None.
35
37 The following environment variables shall affect the execution of type:
38 LANG Provide a default value for the internationalization variables
40 that are unset or null. (See the Base Definitions volume of
41 IEEE Std 1003.1-2001, Section 8.2, Internationalization Vari‐
42 ables for the precedence of internationalization variables used
43 to determine the values of locale categories.)
44 LC_ALL If set to a non-empty string value, override the values of all
46 the other internationalization variables.
47 LC_CTYPE
49 Determine the locale for the interpretation of sequences of
50 bytes of text data as characters (for example, single-byte as
51 opposed to multi-byte characters in arguments).
52 LC_MESSAGES
54 Determine the locale that should be used to affect the format
55 and contents of diagnostic messages written to standard error.
56 NLSPATH
58 Determine the location of message catalogs for the processing of
59 LC_MESSAGES .
60 PATH Determine the location of name, as described in the Base Defini‐
62 tions volume of IEEE Std 1003.1-2001, Chapter 8, Environment
63 Variables.
64
67 Default.
68
70 The standard output of type contains information about each operand in
71 an unspecified format. The information provided typically identifies
72 the operand as a shell built-in, function, alias, or keyword, and where
73 applicable, may display the operand's pathname.
74
76 The standard error shall be used only for diagnostic messages.
77
79 None.
80
82 None.
83
85 The following exit values shall be returned:
86 0 Successful completion.
88 >0 An error occurred.
90
93 Default.
94 The following sections are informative.
96
98 Since type must be aware of the contents of the current shell execution
99 environment (such as the lists of commands, functions, and built-ins
100 processed by hash), it is always provided as a shell regular built-in.
101 If it is called in a separate utility execution environment, such as
102 one of the following:
103 nohup type writer
106 find . -type f | xargs type
107 it might not produce accurate results.
108
110 None.
111
113 None.
114
116 None.
117
119 command, hash
120
122 Portions of this text are reprinted and reproduced in electronic form
123 from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
124 -- Portable Operating System Interface (POSIX), The Open Group Base
125 Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
126 Electrical and Electronics Engineers, Inc and The Open Group. In the
127 event of any discrepancy between this version and the original IEEE and
128 The Open Group Standard, the original IEEE and The Open Group Standard
129 is the referee document. The original Standard can be obtained online
130 at http://www.opengroup.org/unix/online.html .
131IEEE/The Open Group 2003 TYPE(1P)