8378ae0a4e
git-svn-id: svn+ssh://atelier.inf.usi.ch/home/bevilj/group-1@279 a672b425-5310-4d7a-af5c-997e18724b81
41 lines
1.3 KiB
HTML
41 lines
1.3 KiB
HTML
---
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layout: page
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category-page: fs
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category-title: FileSystem
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tags: directory list create new file
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author: Mattia Hijman
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title: touch
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previous-page: pages/fs/rm.html
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---
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The <code>touch</code> command updates the modification and access time of the a file.
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If the given file does not exists, it gets created.<br>
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<pre>
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touch [flags] [file1] [file2] ...
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</pre>
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<h3>Flags</h3>
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<ul>
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<li><b>-A</b>: adjust the access and modification timestamps for the file by the
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specified value.
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</li>
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<li><b>-a</b>: Change the access time of the file. The modification time of the
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file is not changed unless the -m flag is also specified.
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</li>
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<li><b>-c</b>: Do not create the file if it does not exist.</li>
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<li><b>-f</b> Attempt to force the update, even if the file permissions do not
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currently permit it.
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</li>
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<li><b>-h</b>: If the file is a symbolic link, change the times of the link
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itself rather than the file that the link points to.
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</li>
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<li><b>-m</b>: Change the modification time of the file. The access time of the
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file is not changed unless the -a flag is also specified.
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</li>
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<li><b>-t</b>: Change the access and modification times to the specified time
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instead of the current time of day.
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</li>
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</ul>
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