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CHFLAGS (1) | General commands | Unix Manual Pages | :man


chflags - change file flags


Exit Status
See Also


chflags [-h] [ -R [-H-| -L -| -P ] ] flags


The chflags utility modifies the file flags of the listed files as specified by the flags operand.

The options are as follows:

-H If the -R option is specified, symbolic links on the command line are followed. (Symbolic links encountered in the tree traversal are not followed.)
-h If the file is a symbolic link, change the mode of the link itself rather than the file to which it points.
-L If the -R option is specified, all symbolic links are followed.
-P If the -R option is specified, no symbolic links are followed. This is the default.
-R Change the file flags for the file hierarchies rooted in the files instead of just the files themselves.

The flags are specified as an octal number or a comma separated list of keywords. The following keywords are currently defined:

arch, archived set the archived flag (super-user only)
opaque set the opaque flag (owner or super-user only)
nodump set the nodump flag (owner or super-user only)
sappnd, sappend set the system append-only flag (super-user only)
schg, schange, simmutable set the system immutable flag (super-user only)
sunlnk, sunlink set the system undeletable flag (super-user only)
uappnd, uappend set the user append-only flag (owner or super-user only)
uchg, uchange, uimmutable set the user immutable flag (owner or super-user only)
uunlnk, uunlink set the user undeletable flag (owner or super-user only)

Putting the letters "no" before or removing the letters "no" from a keyword causes the flag to be cleared. For example:

nouchg clear the user immutable flag (owner or super-user only)
dump clear the nodump flag (owner or super-user only)

Unless the -H , -L , or -h options are given, chflags on a symbolic link always succeeds and has no effect. The -H , -L and -P options are ignored unless the -R option is specified. In addition, these options override each other and the command’s actions are determined by the last one specified.

You can use "ls -lo" to see the flags of existing files.


.Ex -std


ls(1), chflags(2), stat(2), fts(3), symlink(7)



ls(1), cp(1), find(1), install(1), dump(8), restore(8). pax(1)

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