How to override bounce shell with korn shell

[Hunki]

Q)How to override the bourne shell with korn shell.

I did the export SHELL=/bin/ksh in .profile and the echo $SHELL also gives me /bin/ksh but the passwd file has /bin/sh for this user and commands like alias and $PWD do not work for me . How to override the SHELL so that all these commands work through my .profile.

[Heironimus]

You would need to use chsh to change your login shell. Make sure you know what you're doing.

[Jeff_Traigle]

If you want to change your shell, you must change it in /etc/passwd. Safest way to do this is run the change shell command, chsh. See the man page for useage.

[Steven E. Protter]

Shalom,

Get the sysadmin to change you in /etc/passwd ??

In scripts:

#!/usr/bin/ksh

/bin/sh in HP-UX is the posix shell. It is almost identical to the korn shell.

SEP

[Laurent Menase]

in .profile:

if [ "$SHELL" = "/bin/sh ]
then
SHELL=/usr/bin/ksh
exec ~/myprofile
fi


and in myprofile
#!/usr/bin/ksh
. ~/.profile
exec /usr/bin/ksh

it should work

[B.MariappaN]

use #chsh username shell-path

Regards,
B.MariappaN

[A. Clay Stephenson]

What you think is the Bourne shell is, in fact, the POSIX shell and is actually a slightly more enhanced shell than the Korn. Unless you have a compelling reason to change, I would leave the shell as /usr/bin/sh.

[Patrick Wallek]

If you are running HP-UX of any recent version, then /usr/bin/sh (/bin/ is a link to /usr/bin/) is ACTUALLY the POSIX shell and NOT the bourne shell.

Anything you are used to using in ksh should work in the POSIX shell.

[Hunki]

Laurent,

its gives me the following error when running .profile :

syntax error: `end of file' unexpected

[spex · Accepted solution]

Hunki,

The first line is missing a quote:
if [ "$SHELL" = "/bin/sh" ]

Notice that this approach doesn't actually change the shell. Rather, it runs ksh as a sub-shell of sh.

The best solution is to change the user's shell in /etc/passwd via 'vipw' or 'chsh /usr/bin/ksh', provided that the user IS NOT ROOT. You must never change root's shell from /sbin/sh, as /usr is not mounted in single-user mode.

PCS

[Hunki]

Thanks All , Closing thread and giving you the required points.