1# chmod<a name="EN-US_TOPIC_0000001179845927"></a> 2 3- [Command Function](#section13992936121418) 4- [Syntax](#section63342439147) 5- [Parameter Description](#section894414671411) 6- [Usage](#section182415221419) 7- [Example](#section8518195718147) 8- [Output](#section127391818158) 9 10## Command Function<a name="section13992936121418"></a> 11 12This command is used to change the file operation permission. 13 14## Syntax<a name="section63342439147"></a> 15 16chmod \[_mode_\] \[_pathname_\] 17 18## Parameter Description<a name="section894414671411"></a> 19 20**Table 1** Parameters 21 22<a name="table1049mcpsimp"></a> 23<table><thead align="left"><tr id="row1055mcpsimp"><th class="cellrowborder" valign="top" width="21%" id="mcps1.2.4.1.1"><p id="p1057mcpsimp"><a name="p1057mcpsimp"></a><a name="p1057mcpsimp"></a><strong id="b144816543511718"><a name="b144816543511718"></a><a name="b144816543511718"></a>Parameter</strong></p> 24</th> 25<th class="cellrowborder" valign="top" width="52%" id="mcps1.2.4.1.2"><p id="p1059mcpsimp"><a name="p1059mcpsimp"></a><a name="p1059mcpsimp"></a><strong id="b1544627143010"><a name="b1544627143010"></a><a name="b1544627143010"></a>Description</strong></p> 26</th> 27<th class="cellrowborder" valign="top" width="27%" id="mcps1.2.4.1.3"><p id="p1061mcpsimp"><a name="p1061mcpsimp"></a><a name="p1061mcpsimp"></a><strong id="b44030524511718"><a name="b44030524511718"></a><a name="b44030524511718"></a>Value Range</strong></p> 28</th> 29</tr> 30</thead> 31<tbody><tr id="row1062mcpsimp"><td class="cellrowborder" valign="top" width="21%" headers="mcps1.2.4.1.1 "><p id="p1064mcpsimp"><a name="p1064mcpsimp"></a><a name="p1064mcpsimp"></a>mode</p> 32</td> 33<td class="cellrowborder" valign="top" width="52%" headers="mcps1.2.4.1.2 "><p id="p13519122819294"><a name="p13519122819294"></a><a name="p13519122819294"></a>Specifies the permission for a file or directory. The value is an octal number, representing the permission of <strong id="b11602834153114"><a name="b11602834153114"></a><a name="b11602834153114"></a>User</strong> (owner), <strong id="b032113853120"><a name="b032113853120"></a><a name="b032113853120"></a>Group</strong> (group), or <strong id="b1980114418310"><a name="b1980114418310"></a><a name="b1980114418310"></a>Other</strong> (other groups).</p> 34</td> 35<td class="cellrowborder" valign="top" width="27%" headers="mcps1.2.4.1.3 "><p id="p182181026104214"><a name="p182181026104214"></a><a name="p182181026104214"></a>[0, 777]</p> 36</td> 37</tr> 38<tr id="row172161126124218"><td class="cellrowborder" valign="top" width="21%" headers="mcps1.2.4.1.1 "><p id="p12217026154215"><a name="p12217026154215"></a><a name="p12217026154215"></a>pathname</p> 39</td> 40<td class="cellrowborder" valign="top" width="52%" headers="mcps1.2.4.1.2 "><p id="p4218826194210"><a name="p4218826194210"></a><a name="p4218826194210"></a>Specifies the file path.</p> 41</td> 42<td class="cellrowborder" valign="top" width="27%" headers="mcps1.2.4.1.3 "><p id="p13872195215290"><a name="p13872195215290"></a><a name="p13872195215290"></a>An existing file</p> 43</td> 44</tr> 45</tbody> 46</table> 47 48## Usage<a name="section182415221419"></a> 49 50Specify \[_mode_\] to change the file permission. 51 52## Example<a name="section8518195718147"></a> 53 54Run **chmod 666 hello-harmony.txt**. 55 56## Output<a name="section127391818158"></a> 57 58**Figure 1** Changing the permission for the **hello-harmony.txt** file to **666**<a name="fig501223144912"></a> 59 60 61
