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| <html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>setfacl</title><link rel="stylesheet" type="text/css" href="docbook.css"><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot"><link rel="home" href="cygwin-ug-net.html" title="Cygwin User's Guide"><link rel="up" href="using-utils.html" title="Cygwin Utilities"><link rel="prev" href="regtool.html" title="regtool"><link rel="next" href="setmetamode.html" title="setmetamode"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">setfacl</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="regtool.html">Prev</a> </td><th width="60%" align="center">Cygwin Utilities</th><td width="20%" align="right"> <a accesskey="n" href="setmetamode.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="setfacl"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>setfacl — Modify file and directory access control lists (ACLs)</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="cmdsynopsis"><p><code class="command">setfacl</code> [-n] { -f <em class="replaceable"><code>ACL_FILE</code></em> | -s <em class="replaceable"><code>acl_entries</code></em> } <em class="replaceable"><code>FILE</code></em>... </p></div><div class="cmdsynopsis"><p><code class="command">setfacl</code> [-n] { |
| [-bk] | [-x <em class="replaceable"><code>acl_entries</code></em>] |
| [-m <em class="replaceable"><code>acl_entries</code></em>] |
| } <em class="replaceable"><code>FILE</code></em>... </p></div><div class="cmdsynopsis"><p><code class="command">setfacl</code> -h | -V </p></div></div><div class="refsect1"><a name="setfacl-options"></a><h2>Options</h2><pre class="screen"> |
| -b, --remove-all remove all extended ACL entries |
| -x, --delete delete one or more specified ACL entries |
| -f, --set-file set ACL entries for FILE to ACL entries read |
| from ACL_FILE |
| -k, --remove-default remove all default ACL entries |
| -m, --modify modify one or more specified ACL entries |
| -n, --no-mask don't recalculate the effective rights mask |
| --mask do recalculate the effective rights mask |
| -s, --set set specified ACL entries on FILE |
| -V, --version print version and exit |
| -h, --help this help text |
|
|
| At least one of (-b, -x, -f, -k, -m, -s) must be specified |
| </pre></div><div class="refsect1"><a name="setfacl-desc"></a><h2>Description</h2><p> For each file given as parameter, <span class="command"><strong>setfacl</strong></span> will |
| either replace its complete ACL (<code class="literal">-s</code>, |
| <code class="literal">-f</code>), or it will add, modify, or delete ACL entries. |
| For more information on Cygwin and Windows ACLs, see |
| <a class="xref" href="ntsec.html" title="POSIX accounts, permission, and security">the section called “POSIX accounts, permission, and security”</a> in the Cygwin User's Guide. </p><p> Acl_entries are one or more comma-separated ACL entries from the |
| following list: |
| </p><pre class="screen"> |
| u[ser]::perm |
| u[ser]:uid:perm |
| g[roup]::perm |
| g[roup]:gid:perm |
| m[ask]::perm |
| o[ther]::perm |
| </pre><p> |
| Default entries are like the above with the additional default |
| identifier. For example: |
| </p><pre class="screen"> |
| d[efault]:u[ser]:uid:perm |
| </pre><p> </p><p> <span class="emphasis"><em>perm</em></span> is either a 3-char permissions string in |
| the form "rwx" with the character <code class="literal">'-'</code> for no |
| permission or it is the octal representation of the permissions, a value |
| from 0 (equivalent to "---") to 7 ("rwx"). <span class="emphasis"><em>uid</em></span> is a |
| user name or a numerical uid. <span class="emphasis"><em>gid</em></span> is a group name or |
| a numerical gid. </p><p> The following options are supported: </p><p> <code class="literal">-b</code>,<code class="literal">--remove-all</code> Remove all |
| extended ACL entries. The base ACL entries of the owner, group and |
| others are retained. This option can be combined with the |
| <code class="literal">-k</code>,<code class="literal">--remove-default</code> option |
| to delete all non-standard POSIX permissions.</p><p> <code class="literal">-x</code>,<code class="literal">--delete</code> Delete one or |
| more specified entries from the file's ACL. The owner, group and others |
| entries must not be deleted. Acl_entries to be deleted should be |
| specified without permissions, as in the following list: |
| </p><pre class="screen"> |
| u[ser]:uid[:] |
| g[roup]:gid[:] |
| m[ask][:] |
| d[efault]:u[ser][:uid] |
| d[efault]:g[roup][:gid] |
| d[efault]:m[ask][:] |
| d[efault]:o[ther][:] |
| </pre><p> </p><p> <code class="literal">-f</code>,<code class="literal">--set-file</code> Take the Acl_entries |
| from ACL_FILE one per line. Whitespace characters are ignored, and the |
| character "#" may be used to start a comment. The special filename "-" |
| indicates reading from stdin. Note that you can use this with |
| <span class="command"><strong>getfacl</strong></span> and <span class="command"><strong>setfacl</strong></span> to copy ACLs |
| from one file to another: |
| </p><pre class="screen"> |
| $ getfacl source_file | setfacl -f - target_file |
| </pre><p> </p><p> Required entries are: one user entry for the owner of the file, one |
| group entry for the group of the file, and one other entry. </p><p> If additional user and group entries are given: a mask entry for the |
| file group class of the file, and no duplicate user or group entries with |
| the same uid/gid. </p><p> If it is a directory: one default user entry for the owner of the |
| file, one default group entry for the group of the file, one default mask |
| entry for the file group class, and one default other entry. </p><p> <code class="literal">-k</code>,<code class="literal">--remove-default</code> Remove all |
| default ACL entries. If no default ACL entries exist, no warnings are |
| issued. This option can be combined with the |
| <code class="literal">-b</code>,<code class="literal">--remove-all</code> option |
| to delete all non-standard POSIX permissions.</p><p> <code class="literal">-m</code>,<code class="literal">--modify</code> Add or modify one |
| or more specified ACL entries. Acl_entries is a comma-separated list of |
| entries from the same list as above. </p><p> <code class="literal">-n</code>,<code class="literal">--no-mask</code> Valid in |
| conjunction with -m. Do not recalculate the effective rights mask. |
| The default behavior of setfacl is to recalculate the ACL mask entry, |
| unless a mask entry was explicitly given. The mask entry is set to |
| the union of all permissions of the owning group, and all named user |
| and group entries. (These are exactly the entries affected by the |
| mask entry). </p><p> <code class="literal">--mask</code> Valid in conjunction with -m. Do |
| recalculate the effective rights mask, even if an ACL mask entry was |
| explicitly given. (See the -n option.) </p><p> <code class="literal">-s</code>,<code class="literal">--set</code> Like |
| <code class="literal">-f</code>, but set the file's ACL with Acl_entries |
| specified in a comma-separated list on the command line. </p><p> While the <code class="literal">-x</code> and <code class="literal">-m</code> options |
| may be used in the same command, the <code class="literal">-f</code> and |
| <code class="literal">-s</code> options may be used only exclusively. </p><p> Directories may contain default ACL entries. Files created in a |
| directory that contains default ACL entries will have permissions |
| according to the combination of the current umask, the explicit |
| permissions requested and the default ACL entries.</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="regtool.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="using-utils.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="setmetamode.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">regtool </td><td width="20%" align="center"><a accesskey="h" href="cygwin-ug-net.html">Home</a></td><td width="40%" align="right" valign="top"> setmetamode</td></tr></table></div></body></html> |
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