/etc/shells  is  a text file which contains the full pathnames of valid
       login shells.  This file is consulted by chsh(1) and  available  to  be
       queried by other programs.

       Be aware that there are programs which consult this file to find out if
       a user is a normal user; for example, FTP daemons traditionally  disal-
       low access to users with shells not included in this file.


       /etc/shells may contain the following paths:


       chsh(1), getusershell(3)

       This  page  is  part of release 4.04 of the Linux man-pages project.  A
       description of the project, information about reporting bugs,  and  the
       latest     version     of     this    page,    can    be    found    at

                                  2012-12-31                         SHELLS(5)
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