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FreeBSD man pages : chflags (1)
CHFLAGS(1)		FreeBSD General Commands Manual 	    CHFLAGS(1)


chflags - change file flags


chflags [-R [-H | -L | -P]] flags file ...


The chflags utility modifies the file flags of the listed files as speci- fied 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.) -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 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 set the system append-only flag (super-user only) schg set the system immutable flag (super-user only) sunlnk set the system undeletable flag (super-user only) uappnd set the user append-only flag (owner or super-user only) uchg set the user immutable flag (owner or super-user only) uunlnk set the user undeletable flag (owner or super-user only) archived, sappend, schange, simmutable, uappend, uchange, uimmutable, sunlink, uunlink aliases for the above Putting the letters ``no'' before an option causes the flag to be turned off. For example: nouchg the immutable bit should be cleared Symbolic links do not have flags, so unless the -H or -L option is set, 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 addi- tion, 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.


The chflags utility exits 0 on success, and >0 if an error occurs.


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


The chflags command first appeared in 4.4BSD. FreeBSD 4.8 May 2, 1995 FreeBSD 4.8