From: Spurgeon, John P (john.p.spurgeon@intel.com)
Date: Sun Nov 09 2003 - 14:22:35 EST
In Chapter 10 of "Learning the Korn Shell", Bill Rosenblatt talks about
replacing the Bourne shell with the Korn shell. I'm considering doing
this on a Solaris 7 system as follows:
rm /sbin/sh; cp -p /usr/bin/ksh /sbin/sh
rm /usr/bin/sh; ln /usr/bin/ksh /usr/bin/sh
rm /usr/bin/jsh; ln /usr/bin/ksh /usr/bin/jsh
rm /usr/lib/rsh; ln /usr/bin/ksh /usr/lib/rsh
rm /usr/bin/rsh; ln /usr/bin/ksh /usr/bin/rsh
However, I'm somewhat concerned about /usr/bin/rsh. I can see that
/usr/bin/sh, /usr/bin/jsh, and /usr/lib/rsh are all hard links to the
same program, but /usr/bin/rsh is different. Furthermore, /usr/bin/rsh
is a setuid root program.
Does anyone know why /usr/bin/rsh is different, why it is setuid root,
and what the consequences of replacing the file with /usr/bin/ksh are?
I'm not so concerned about /sbin/sh, because it's not setuid root;
however, it is also different from /usr/bin/sh. I'm curious to know what
the difference is between these two programs as well.
John Spurgeon
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