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Full Discussion: Alias is not working under Bourne Shell
Operating Systems Solaris Alias is not working under Bourne Shell Post 302960176 by MadeInGermany on Wednesday 11th of November 2015 05:54:46 PM
Old 11-11-2015
Jilliagre is right. E.g. bash sets SHELL to the user's default shell if not yet set.
The old Bourne shell does not do that, but these systems use the login program - that does it.
And you are right, too. Once SHELL is set (automatically or manually), many tools (e.g. shell-terminal) open this shell.
--
Traditionally /sbin contained statically-linked binaries. At that times /usr was a separate partition or even a separate disk. If /usr failed and the kernel could load from / then it was good to have statically linked tools under / , without the need of the /usr/lib/*.so
Indeed Solaris 9 and older have
Code:
% ls -l /bin/sh
-r-xr-xr-x   4 root     root       95480 Nov 19  2008 /bin/sh
% ls -l /sbin/sh
-r-xr-xr-x   2 root     root      306216 Nov 19  2008 /sbin/sh
% ldd /bin/sh
        libgen.so.1 =>   /usr/lib/libgen.so.1
        libsecdb.so.1 =>         /usr/lib/libsecdb.so.1
        libnsl.so.1 =>   /usr/lib/libnsl.so.1
        libc.so.1 =>     /usr/lib/libc.so.1
        libcmd.so.1 =>   /usr/lib/libcmd.so.1
        libdl.so.1 =>    /usr/lib/libdl.so.1
        libmp.so.2 =>    /usr/lib/libmp.so.2
        /usr/platform/SUNW,Sun-Fire-V240/lib/libc_psr.so.1
% ldd /sbin/sh
ldd: /sbin/sh: file is not a dynamic executable or shared object

For each fix in one of the shared libraries Sun had to provide a new /sbin/sh (to also contain the fix). This was cumbersome.
Solaris 10 changed to
Code:
% ls -l /bin/sh
lrwxrwxrwx   1 root     root          13 Nov  7  2011 /bin/sh -> ../../sbin/sh

And in Solaris 11 Oracle has given up the Bourne shell
Code:
% ls -l /bin/sh
lrwxrwxrwx   1 root     root           9 Jun 17  2013 /bin/sh -> i86/ksh93
% ls -l /sbin/sh
lrwxrwxrwx   1 root     root          16 Jun 17  2013 /sbin/sh -> ../bin/i86/ksh93

This User Gave Thanks to MadeInGermany For This Post:
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LEARN ABOUT OPENDARWIN

install-solaris

install-solaris(1M)													       install-solaris(1M)

NAME

       install-solaris - install the Solaris operating system

SYNOPSIS

       install-solaris

       install-solaris	invokes  the  Solaris  Install	program. Depending on graphical capability and available memory at the time of invocation,
       install-solaris invokes either a text-based installer or a graphical installer.

       The following minimum requirements for physical memory dictate which features are available during installation:

       For SPARC machines:

       128 MB

	   Minimum physical memory for all installation types

       128 MB

	   Minimum physical memory required for windowing system

       384 MB

	   Minimum physical memory required for graphical-based installation

       For x86 machines:

       256 MB

	   Minimum physical memory for all installation types

       256 MB

	   Minimum physical memory required for windowing system

       512 MB

	   Minimum physical memory required for graphical-based installation

       In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number  of  fea-
       tures available.

       install-solaris	exists	only  on  the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the  for more
       details.

       install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the
       installation media. Refer to the  for disk space requirements.

       Refer to the  for more information on the various menus and selections.

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcdrom  (Solaris instal-  |
       |			     |lation media)		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

       pkginfo(1), install(1M), pkgadd(1M), attributes(5)

       It is advisable to exit install-solaris by means of the exit options in the install-solaris menus.

								    23 Sep 2005 					       install-solaris(1M)
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