Extended file attributes: Difference between revisions

Revision as of 02:19, 21 June 2020

Revision as of 07:19, 19 July 2020

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as do [[XFS#Extended attributes|XFS]] and [[ReiserFS]],

but [[ext2]]/[[ext3|3]]/[[ext4|4]] and [[btrfs]] impose much smaller limits, requiring all the attributes (names and values) of one file to fit in one "filesystem block" (usually 4 KiB). ThePer attributePOSIX.1e, themselvesthe names are required to start with one of ''security'', ''system'', ''trusted'', and ''user'' plus a period. This defines the four namespaces of xattrs.<ref>{{man|7|xattr|Linux}}</ref>

Extended attributes can be accessed and modified using the <code>getfattr</code> and <code>setfattr</code> commands from the <code>attr</code> package on most distributions.<ref>{{cite web