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STICKY(7) Miscellaneous Information Manual STICKY(7) NAME sticky -- sticky text and append-only directories DESCRIPTION A special file mode, called the sticky bit (mode S_ISTXT), is used to indi- cate special treatment for directories. It is ignored for regular files. See chmod(2) or the file <sys/stat.h> for an explanation of file modes. STICKY DIRECTORIES A directory whose `sticky bit' is set becomes an append-only directory, or, more accurately, a directory in which the deletion of files is restricted. A file in a sticky directory may only be removed or renamed by a user if the user has write permission for the directory and the user is the owner of the file, the owner of the directory, or the super-user. This feature is usefully applied to directories such as /tmp which must be publicly writable but should deny users the license to arbitrarily delete or rename each others' files. Any user may create a sticky directory. See chmod(1) for details about modifying file modes. HISTORY A sticky command appeared in Version 7 AT&T UNIX/32V. BUGS Neither open(2) nor mkdir(2) will create a file with the sticky bit set. FreeBSD ports 15.quarterly June 5, 1993 STICKY(7)
NAME | DESCRIPTION | STICKY DIRECTORIES | HISTORY | BUGS
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