How to set up tcsh when the account runs another shell


1. Find where tcsh is on your system: which tcsh  to get the 
   full path to it.  A standard location is:  /usr/local/bin/tcsh
   If yours is not, replace it with the correct path in 2 below.


2. To make tcsh start up automatically when you login,
	see 2.A or 2.B.
   Else, you can keep your default shell and run tcsh manually
	by typing:  tcsh    See 3.

2.A  If your default shell is csh, insert this in your .login, 
     before any uncommented lines:
##---------------------- autostart tcsh ----------------------##
if( $?prompt ) then
  if ( ! $?tcsh ) then
    if ( -x /usr/local/bin/tcsh ) then
	 echo " ... exec  tcsh ... wait ..."
	 exec /usr/local/bin/tcsh -l
    endif
  endif
endif

2.B  If your default shell is ksh or another sh variant, 
     insert this in your .profile, after PATH is set:
##---------------------- autostart tcsh ----------------------##
if [ $?prompt ]; then
  if [ -z "$tcsh" ]; then
    if [ -x /usr/local/bin/tcsh ]; then
        echo " ... exec  tcsh ... wait ..."
        exec /usr/local/bin/tcsh -l
    fi
  fi
fi



3. In your home dir, create a file named: .tcshrc, 
   and copy into it everything below:
###
###------- tcsh startup, only for interactive shells ---------##
if ( ! $?prompt ) then          ## not interactive shell, so exit
                source ~/.cshrc
                exit
else                            ## interactive shell, so set tcsh:

  echo "shell = $shell :   sourcing  .cshrc  .login "
  ##------------------------ set DISPLAY ---------------------##
     if ($?REMOTEHOST) then
	 setenv DISPLAY ${REMOTEHOST}:0
     else
	setenv DISPLAY `hostname`:0
     endif
	echo '        DISPLAY is set to:' $DISPLAY
  ##-------------------
  source ~/.cshrc
  source ~/.login
  #source ~/.Setup	## any other setup files, else delete this

  ##-------------------- set tcsh variables ------------------##
	 set autolist=ambiguous ##possibilities at ambiguous completion
         set prompt=%m:%~" :> "%L	 ## prompt: hostname: cwd :>
	#set symlinks=ignore    ##stays at dir@, not going to real one
	 bindkey -v		##vi-like bindings for command editing
         alias l    'echo " "; ls-F'	##builtin fast "ls -CF"
	 alias la   'echo " "; echo \!*; ls-F -A  \!* | more -ei'
	 alias ll   'echo " "; echo \!*; ls-F -s  \!* '
endif