Editing .tcshrc problems
 

I don't seem to be able to make this work. I've switched to tc shell and made a .tcshrc file, which looks a bit like this:
################################################################
# .tcshrc

# User specific aliases and functions

alias rm 'rm -i'
alias cp 'cp -i'
alias mv 'mv -i'

# Source global definitions
if [ -f /etc/tcshrc ]; then
. /etc/tcshrc
endif

################################################################

Now when I open a shell, i get this message:

if: Expression Syntax.

What's wrong with my if statement? Have I missed something out?

Also, I need to add these statements to the .tcshrc in order to get a program to run:
setenv LD_LIBRARY_PATH $HOME/EMAN/lib
set path = (. $HOME/EMAN/bin $HOME/bin /bin)

But when I add these to the .tcshrc nothing changes. What exactly am I doing wrong?

When you make changes to the .tcshrc file, you need to run the command
to make the changes take effect in the current shell. You can also close the shell and open a new one. This hopefully will sort the environment variable problem.

I hope this helps
--Ian

I still can't make this work. I'm pretty sure I've tried everything that has been suggested. What's going wrong?

I'm no pro here, but I think the problem is the ";" after the first line of the statement. Remove that and add "source" to the command.. Now it will look like:

################################################################
# .tcshrc

# User specific aliases and functions

alias rm 'rm -i'
alias cp 'cp -i'
alias mv 'mv -i'

# Source global definitions
if [ -f /etc/tcshrc ] then
source /etc/tcshrc
endif

################################################################

If that still doesn't work, try changing the "endif" to "fi" instead.

Hope this helps, good luck,

Jeff

Wait, I think I found the problem. Use () instead of []. Just did a test and got the same message when I used the [] - no error when I used the ()

Good luck.

I get a different error message now, which is an improvement I suppose! Now I get "if: Malformed file inquiry", which is intruiging.

try -e instead of -f...

if [ -e /etc/tcshrc ] then

Good luck,

Or, in tcsh syntax

Cheers,

Tink

P.S.: tcsh sucks :) ... specially for scripting.

Oh, and my example is wrong...I copied and pasted and kept the brackets when I should have used parenthesis...as in...

if ( -e /etc/tcshrc ) then

Good luck,

I now have:

################################################
# .tcshrc

# User specific aliases and functions

alias rm 'rm -i'
alias cp 'cp -i'
alias mv 'mv -i'

# Source global definitions
if ( filetest -e file )
source /etc/tcshrc

endif

setenv LD_LIBRARY_PATH $HOME/EMAN/lib

set path = (. $HOME/EMAN/bin $HOME/bin /bin /etc)
################################################

And I'm back to the "if: expression syntax" error message. Some of you may have realised by now that I am rubbish at this kind of thing. All I really want to do is add the path and setenv lines at the bottom of my script so that i don't have to type them in every time I run the program. I feel I have to use tcsh 'cos that's what I'm on at university and I understand bash even less (if that's actually possible!). If anyone still feels they want to help me then that's very much appreciated, but I understand if you'd rather do something else!

Try it this way...

################################################
# .tcshrc

# User specific aliases and functions

alias rm 'rm -i'
alias cp 'cp -i'
alias mv 'mv -i'

# Source global definitions
if (-e /etc/tcshrc) then
source /etc/tcshrc
endif

setenv LD_LIBRARY_PATH $HOME/EMAN/lib

set path = (. $HOME/EMAN/bin $HOME/bin /bin /etc)
################################################


and if that doesn't work, try


################################################
# .tcshrc

# User specific aliases and functions

alias rm 'rm -i'
alias cp 'cp -i'
alias mv 'mv -i'

# Source global definitions
if (-e /etc/tcshrc) source /etc/tcshrc
endif

setenv LD_LIBRARY_PATH $HOME/EMAN/lib

set path = (. $HOME/EMAN/bin $HOME/bin /bin /etc)
################################################

and let us know if that works...

The top one works. thanks very much. I'm sure I tried that earlier.

However, (perhaps I should have seen this one coming) because I have changed path and environment variables, I've now lost the use of my editor, commands like "less", and basically everything else that's useful. Sorry!

perhaps, instead of "set path" you should use export PATH

I'm not very good with this stuff, but try this:

################################################
# .tcshrc

# User specific aliases and functions

alias rm 'rm -i'
alias cp 'cp -i'
alias mv 'mv -i'

# Source global definitions
if (-e /etc/tcshrc) then
source /etc/tcshrc
endif

setenv LD_LIBRARY_PATH $HOME/EMAN/lib

PATH=$PATH:$HOME/bin:$HOME/EMAN/bin:/bin:/etc:/sbin:/usr/sbin
export PATH
################################################

That will not only add the new path you want, but a couple others I find useful (/sbin & /usr/sbin)

I'm pretty sure this will work now. I think you just over-wrote your usual path settings with the set path command.

Good luck, let us know if it works...

I get a "bad : modifier in $ ($)" message. I think that the export path statement there is bash syntax. I'll have a look at it. Thanks for helping though! Much appreciated!

Sorry.

Did you see the reply to your other post? You may try replacing the two lines for setting the path with this one from your other post...

setenv $PATH:$HOME/EMAN/bin:$HOME/bin:/bin:/etc

and try that.

Hat tip to bostontech for that suggestion...

Good luck,