Hi all !!
I am trying to swtich to ksh shell. And when I type "ksh" it says command not found. So I tried using "which ksh" again its saying command not found. I went to the bin directory but I didn't found ksh there. Rest of them are there like tcsh, sh, bash etc.
My default shell is tcsh....
Do I need to install ksh separately? If yes then please send me the site and the information about how to download it.......
By the way I am using Mandrake 10.1. This might help you guys a bit more.

Thanks in Advance.
Ash

Try...also logout and log back in

Forgot to add that I think you'll have to be root to in order to use the chsh command.

after using "chsh ksh" it says
chsh : user "ksh" doesn't exits........

Thanks
Ash

I'm sorry...

do this instead...

enter roots passwd...

then enter /bin/ksh

You'll still have to logout and log back in for it to take effect.

Some distros do not install ksh by default anymore. Mandrake being more of a user-friendly kind, I suspect it's the case. Try to find the package that contains ksh on your Mandrake CDs. It should be named "pdksh-<version>.rpm." Once you locate it, just install it using the rpm command (as root) as follows:
That should take care of the problem.

try simply typing: ksh

cannot find it...did a web search and searched on Redhat

Redhat search found it but there was no link to download

required pdksh-5.2.14-30

landon (root) ~/pdksh [193]>lsa
total 1228
drwxr-xr-x 3 root root 4096 Mar 11 16:54 ./
drwxr-x--- 26 root root 4096 Mar 11 16:54 ../
drwxr-xr-x 6 root tomcat 4096 Mar 11 16:46 pdksh-5.2.14/
-rw-r--r-- 1 root root 226913 Mar 11 16:53 pdksh-5.2.14-30.i386.rpm
-rw-r--r-- 1 root root 491952 Mar 11 16:52 pdksh-5.2.14-30.src.rpm
-rw-r--r-- 1 root root 480107 Mar 11 16:44 pdksh-5.2.14.tar.gz
landon (root) ~/pdksh [194]>rpm -U pdksh-5.2.14-30.i386.rpm
file /bin/sh from install of pdksh-5.2.14-30 conflicts with file from package bash-3.0-31
file /usr/share/man/man1/sh.1.gz from install of pdksh-5.2.14-30 conflicts with file from package bash-3.0-31
landon (root) ~/pdksh [195]>

Try
or

landon (root) ~/pdksh [213]>man urpmi
No manual entry for urpmi
landon (root) ~/pdksh [214]>

urpmi is only available on Mandriva or derivatives. The OP mentioned that they were running Mandrake 10.1 so I posted how to install the packages in that particular distro. Mandriva has pdksh and ksh93 available in its software repositories.

I don't understand, why would anyone use anything other than bash?

guys, this thread is 15 months old why are you replying?

I didn't even bother lookng at the date the thread was started. Thanks for that.

Many people with previous UNIX expereince, prefer KSH or CSH because those are the default shells on most UNIX flavours. Bash for a long time was just a Linux thing but many other UNIX and UNIX like operating systems have now incorporated it. I personally prefer zsh because it has better tab completion than bash.