On Fri, 17 Mar 2000, Rob Saul wrote:
>
> Some Unix variants have had a shell called restricted_shell
> (usually given the helpful name rsh). I don't recall ever
> seeing a version for Linux, but a description can be found
> here: http://gsbjfb.uchicago.edu/man/man1m/rsh.html
>
The following is from the ksh (pdksh) man page:
A shell is restricted if the -r option is used or if either
the basename of the name the shell is invoked with or the
SHELL parameter match the pattern *r*sh (e.g., rsh, rksh,
rpdksh, etc.). The following restrictions come into effect
after the shell processes any profile and $ENV files:
o the cd command is disabled
o the SHELL, ENV and PATH parameters can't be changed
o command names can't be specified with absolute or
relative paths
o the -p option of the command built-in can't be used
o redirections that create files can't be used
(i.e., >, >|, >>, <>)
--
John Darrah (u05192) | Dept: N/C Programming
Giddens Industries | Ph: (425) 353-0405 #229
PO box 3190 | Ph: (206) 767-4212 #229
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