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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><html><head><!-- Copyright 1997 The Open Group, All Rights Reserved --><title>mv</title></head><body bgcolor=white><center><font size=2>The Single UNIX ® Specification, Version 2<br>Copyright © 1997 The Open Group</font></center><hr size=2 noshade><h4><a name = "tag_001_014_1479"> </a>NAME</h4><blockquote>mv - move files</blockquote><h4><a name = "tag_001_014_1480"> </a>SYNOPSIS</h4><blockquote><pre><code>mv <b>[</b>-fi<b>] </b><i>source_file target_file</i>mv <b>[</b>-fi<b>] </b><i>source_file</i>... <i>target_file</i></code></pre></blockquote><h4><a name = "tag_001_014_1481"> </a>DESCRIPTION</h4><blockquote>In the first synopsis form, the<i>mv</i>utility moves the file named by the<i>source_file</i>operand to the<i>destination</i>specified by the<i>target_file</i>.This first synopsis form is assumed when the final operand does not namean existing directory.<p>In the second synopsis form,<i>mv</i>moves each file named by a<i>source_file</i>operand to a<i>destination</i>file in the existing directory named by the<i>target_dir</i>operand.The<i>destination</i>path for each<i>source_file</i>is theconcatenation of the target directory, a single slash character,and the last pathname component of the<i>source_file.</i>This second form is assumed when the final operand names an existingdirectory.<p>If any operand specifies an existing file of a type notspecified by the <b>XSH</b> specification, the behaviour is implementation-dependent.<p>For each<i>source_file</i>the following steps are taken:<ol><p><li>If the destination path exists,the<b>-f</b>option is not specified,and either of the following conditions is true:<ol type = a><p><li>The permissions of the destination path do not permitwriting and the standard input is a terminal.<p><li>The<b>-i</b>option is specified.<p></ol><p>The<i>mv</i>utility will write a prompt to standard error andread a line from standard input.If the response is not affirmative,<i>mv</i>will do nothing more with the current<i>source_file</i>and go on to any remaining<i>source_file</i>s.<p><li>The<i>mv</i>utility will perform actions equivalent to the <b>XSH</b> specification<i><a href="../xsh/rename.html">rename()</a></i>function, called with the following arguments:<ol type = a><p><li>The<i>source_file</i>operand is used as the<i>old</i>argument.<p><li>The destination path is used as the<i>new</i>argument.<p></ol><p>If this succeeds,<i>mv</i>will do nothing more with the current<i>source_file</i>and go on to any remaining<i>source_file</i>s.If this fails for any reasons other than those described for the<i>errno</i>[EXDEV]in the <b>XSH</b> specification,<i>mv</i>will write adiagnostic message to standard error, do nothing morewith the current<i>source_file</i>,and go on to any remaining<i>source_file</i>s.<p><li>If the destination path exists, and it is a file of typedirectory and<i>source_file</i>is not a file of type directory,or it is a file not of type directory and<i>source_file</i>is a file of type directory,<i>mv</i>will write a diagnostic messageto standard error, do nothing more with the current<i>source_file</i>,and go on to any remaining<i>source_file</i>s.<p><li>If the destination path exists,<i>mv</i>will attempt to remove it.If this fails for any reason,<i>mv</i>will write a diagnostic message tostandard error, do nothing more with the current<i>source_file,</i>and go on to any remaining<i>source_file</i>s.<p><li>The file hierarchy rooted in<i>source_file</i>will be duplicated asa file hierarchy rooted in the destination path.The followingcharacteristics of each file in the file hierarchy will beduplicated:<ul><p><li>the time of last data modification and time of last access<p><li>the user ID and group ID<p><li>the file mode.<p></ul><p>If the user ID, group ID or file mode of a regular file cannotbe duplicated, the file mode bits S_ISUID and S_ISGID will notbe duplicated.<p>When files are duplicated to another file system,the implementation may require that the process invoking<i>mv</i>has read access to each file being duplicated.<p>If the duplication of the file hierarchy fails for any reason,<i>mv</i>will write adiagnostic message to standard error, do nothingmore with the current<i>source_file,</i>and go on to any remaining<i>source_file</i>s.<p>If the duplication of the file characteristics fails for any reason,<i>mv</i>will write a diagnostic message to standard error, but thisfailure will not cause<i>mv</i>to modify its exit status.<p><li>The file hierarchy rooted in<i>source_file</i>will be removed.If this fails for any reason,<i>mv</i>will write a diagnostic messageto the standard error, do nothing more with the current<i>source_file,</i>and go on to any remaining<i>source_file</i>s.<p></ol></blockquote><h4><a name = "tag_001_014_1482"> </a>OPTIONS</h4><blockquote>The<i>mv</i>utility supports the <b>XBD</b> specification, <a href="../xbd/utilconv.html#usg"><b>Utility Syntax Guidelines</b> </a> .<p>The following options are supported:<dl compact><dt><b>-f</b><dd>Do not prompt for confirmation if the destination path exists.Any previous occurrences of the<b>-i</b>option will be ignored.<dt><b>-i</b><dd>Prompt for confirmation if the destination path exists.Any previous occurrences of the<b>-f</b>option will be ignored.</dl><p>Specifying more than one of the<b>-f</b>or<b>-i</b>options is not considered an error.The last option specified will determine the behaviour of<i>mv</i>.</blockquote><h4><a name = "tag_001_014_1483"> </a>OPERANDS</h4><blockquote>The following operands are supported:<dl compact><dt><i>source_file</i><dd>A pathname of a file or directory to be moved.<dt><i>target_file</i><dd>A new pathname for the file or directory being moved.<dt><i>target_dir</i><dd>A pathname of an existing directory into whichto move the input files.</dl></blockquote><h4><a name = "tag_001_014_1484"> </a>STDIN</h4><blockquote>Used to read an input line in response to each promptspecified in the STDERR section.Otherwise, the standard input will not be used.</blockquote><h4><a name = "tag_001_014_1485"> </a>INPUT FILES</h4><blockquote>The input files specified by each<i>source_file</i>operand can be of any file type.</blockquote><h4><a name = "tag_001_014_1486"> </a>ENVIRONMENT VARIABLES</h4><blockquote>The following environment variables affect the execution of<i>mv</i>:<dl compact><dt><i>LANG</i><dd>Provide a default value for the internationalisation variablesthat are unset or null.If<i>LANG</i>is unset or null, the corresponding value from theimplementation-dependent default locale will be used.If any of the internationalisation variables contains an invalid setting, theutility will behave as if none of the variables had been defined.<dt><i>LC_ALL</i><dd>If set to a non-empty string value,override the values of all the other internationalisation variables.<dt><i>LC_COLLATE</i><dd>Determine the locale for thebehaviour of ranges, equivalence classesand multi-character collating elementsused in the extended regular expression defined for the<b>yesexpr</b>locale keyword in the LC_MESSAGES category.<dt><i>LC_CTYPE</i><dd>Determine thelocale for the interpretation of sequences of bytes of text data ascharacters (for example, single- as opposed to multi-byte charactersin arguments and input files),the behaviour of character classesused in the extended regular expression defined for the<b>yesexpr</b>locale keyword in the LC_MESSAGES category.<dt><i>LC_MESSAGES</i><dd>Determine the locale for the processing of affirmative responsesthat should be used to affect the format and contents of diagnosticmessages written to standard error.<dt><i>NLSPATH</i><dd>Determine the location of message cataloguesfor the processing of<i>LC_MESSAGES .</i></dl></blockquote><h4><a name = "tag_001_014_1487"> </a>ASYNCHRONOUS EVENTS</h4><blockquote>Default.</blockquote><h4><a name = "tag_001_014_1488"> </a>STDOUT</h4><blockquote>Not used.</blockquote><h4><a name = "tag_001_014_1489"> </a>STDERR</h4><blockquote>Prompts will be written to the standard error under the conditionsspecified in the DESCRIPTION section.The prompts will contain the<i>destination</i>pathname, but their format is otherwise unspecified.Otherwise, the standard error will be used only for diagnostic messages.</blockquote><h4><a name = "tag_001_014_1490"> </a>OUTPUT FILES</h4><blockquote>The output files may be of any file type.</blockquote><h4><a name = "tag_001_014_1491"> </a>EXTENDED DESCRIPTION</h4><blockquote>None.</blockquote><h4><a name = "tag_001_014_1492"> </a>EXIT STATUS</h4><blockquote>The following exit values are returned:<dl compact><dt>0<dd>All input files were moved successfully.<dt>>0<dd>An error occurred.</dl></blockquote><h4><a name = "tag_001_014_1493"> </a>CONSEQUENCES OF ERRORS</h4><blockquote>If the copying or removal of<i>source_file</i>is prematurely terminatedby a signal or error,<i>mv</i>may leave a partial copy of<i>source_file</i>at the source or destination.The<i>mv</i>utility will not modify both<i>source_file</i>and the destination path simultaneously; termination at any pointwill leave either<i>source_file</i>or the destination path complete.</blockquote><h4><a name = "tag_001_014_1494"> </a>APPLICATION USAGE</h4><blockquote>None.<br></blockquote><h4><a name = "tag_001_014_1495"> </a>EXAMPLES</h4><blockquote>If the current directory contains only files<b>a</b>(of any type defined by the <b>XSH</b> specification),<b>b</b>(also of any type), and a directory<b>c</b>:<pre><code>mv a b cmv c d</code></pre>will result with the original files<b>a</b>and<b>b</b>residing in thedirectory<b>d</b>in the current directory.</blockquote><h4><a name = "tag_001_014_1496"> </a>FUTURE DIRECTIONS</h4><blockquote>None.</blockquote><h4><a name = "tag_001_014_1497"> </a>SEE ALSO</h4><blockquote><i><a href="cp.html">cp</a></i>,<i><a href="ln.html">ln</a></i>.</blockquote><hr size=2 noshade><center><font size=2>UNIX ® is a registered Trademark of The Open Group.<br>Copyright © 1997 The Open Group<br> [ <a href="../index.html">Main Index</a> | <a href="../xshix.html">XSH</a> | <a href="../xcuix.html">XCU</a> | <a href="../xbdix.html">XBD</a> | <a href="../cursesix.html">XCURSES</a> | <a href="../xnsix.html">XNS</a> ]</font></center><hr size=2 noshade></body></html>⌨️ 快捷键说明
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