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58 lines
1.6 KiB
Groff
58 lines
1.6 KiB
Groff
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.\" -*- nroff -*-
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.TH CHATTR 1 "March 1994" "Version 0.5"
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.SH NAME
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chattr \- change file attributes on a Linux second extended file system
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.SH SYNOPSIS
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.B chattr
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[
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.B \-RV
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]
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[
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.B -v
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version
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]
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[
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mode
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]
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.I files...
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.SH DESCRIPTION
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.B chattr
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changes the files attributes on an second extended file system.
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.PP
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The format of a symbolic mode is +-=[Scsu].
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.PP
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The operator `+' causes the selected attributes to be added to the
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existing attributes of the files; `-' causes them to be removed; and
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`=' causes them to be the only attributes that the files have.
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.PP
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The letters `Scsu' select the new attributes for the files: synchronous
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updates (S), compressed (c), secure deletion (s), and undeletable (u).
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.SH OPTIONS
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.TP
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.I -R
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Recursively change attributes of directories and their contents.
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.TP
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.I -V
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Verbosely describe changed attributes.
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.TP
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.I -v version
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Set the files version.
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.SH AUTHOR
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.B chattr
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has been written by Remy Card <card@masi.ibp.fr>, the developer and maintainer
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of the ext2 fs.
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.SH BUGS AND LIMITATIONS
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As of ext2 fs 0.4, the kernel code only honours the `s' and `S' attributes. When
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a file with the `s' attribute set is deleted, its blocks are zeroed and
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written back to the disk. When a file with the `S' attribute set is modified,
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the changes are written synchronously on the disk; this is equivalent to
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the `sync' mount option applied to a subset of the files.
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.PP
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The other attributes will be implemented in a next ext2 fs version.
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.SH AVAILABILITY
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.B chattr
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is available for anonymous ftp from ftp.ibp.fr (132.227.60.2) in
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/pub/linux/BETA/ext2fs.
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.SH SEE ALSO
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.BR lsattr (1)
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