from tcsh to zsh (alias)

from tcsh to zsh (alias)

[Leander Jedamus]

Hi!

When I log in on antother machine with ssh, i want, that in the terminal 
window the address of this machine is shown. When I log out, the 
original machine name should be displayed. In tcsh I do the following:
alias cwdcmd  'echo -n 
"\033]2;${USER}@${HOST}:$cwd\007\033]1;${USER}@${HOST}:$cwd\007"'
alias   ssh     'ssh \!* ; cd .'
Now all parameters for the alias go to the original ssh-program. After 
that a "cd ." is done and everything is okay.

Now I want that under zsh:
if [ -n "$DISPLAY" ]; then
     chpwd()
     {
       echo -n 
"\e]2;${USER}@${HOST}:${PWD}\007\e]1;${USER}@${HOST}:${PWD}\007";
     };# chpwd()
     cd .
   fi

but now:
alias ssh="ssh $* ; cd ."
doesn't work as extpected.

What do I have to do now?

Thanks in advance
Leander Jedamus

Re: from tcsh to zsh (alias)

[Peter Stephenson]

On Tue, 08 Jun 2010 12:24:08 +0200
Leander Jedamus <ljedamus@googlemail.com> wrote:
> alias ssh="ssh $* ; cd ."
> doesn't work as extpected.

This needs to be a function since aliases don't take arguments (because
functions are generally more powerful and replace many uses of aliases):

ssh() {
   ssh "$@"
   cd .
}

See http://zsh.sourceforge.net/FAQ/zshfaq02.html#l12

-- 
Peter Stephenson <pws@csr.com>            Software Engineer
Tel: +44 (0)1223 692070                   Cambridge Silicon Radio Limited
Churchill House, Cambridge Business Park, Cowley Road, Cambridge, CB4 0WZ, UK


Member of the CSR plc group of companies. CSR plc registered in England and Wales, registered number 4187346, registered office Churchill House, Cambridge Business Park, Cowley Road, Cambridge, CB4 0WZ, United Kingdom

Re: from tcsh to zsh (alias)

[Leander Jedamus]

Am 08.06.2010 12:32, schrieb Peter Stephenson:
> ssh "$@"
Now it says:
ssh:2: maximum nested function level reached
How can I prevent loops? Ah, I read some further:
ssh() {
   command ssh "$@"
   cd .
}

Re: from tcsh to zsh (alias)

[Sebastian Stark]

Am 08.06.2010 um 12:43 schrieb Leander Jedamus:

> Am 08.06.2010 12:32, schrieb Peter Stephenson:
>> ssh "$@"
> Now it says:
> ssh:2: maximum nested function level reached
> How can I prevent loops? Ah, I read some further:
> ssh() {
>  command ssh "$@"
>  cd .
> }

A function like this even works in case of failure of the ssh command as well as when ssh is still trying to connect:

ssh () {
        set_title ${*##-*}
        {
                command ssh "$@"
        } always {
                set_title ${HOST/.*}
        }
}

from tcsh to zsh (alias)

[Leander Jedamus]

Hi!

When I log in on antother machine with ssh, i want, that in the terminal 
window the address of this machine is shown. When I log out, the 
original machine name should be displayed. In tcsh I do the following:
alias cwdcmd  'echo -n 
"\033]2;${USER}@${HOST}:$cwd\007\033]1;${USER}@${HOST}:$cwd\007"'
alias   ssh     'ssh \!* ; cd .'
Now all parameters for the alias go to the original ssh-program. After 
that a "cd ." is done and everything is okay.

Now I want that under zsh:
if [ -n "$DISPLAY" ]; then
     chpwd()
     {
       echo -n 
"\e]2;${USER}@${HOST}:${PWD}\007\e]1;${USER}@${HOST}:${PWD}\007";
     };# chpwd()
     cd .
   fi

but now:
alias ssh="ssh $* ; cd ."
doesn't work as extpected.

What do I have to do now?

Thanks in advance
Leander Jedamus

Re: from tcsh to zsh (alias)

[Wayne Davison]

[-- Attachment #1: Type: text/plain, Size: 248 bytes --]

On Tue, Jun 8, 2010 at 3:22 AM, Leander Jedamus <ljedamus@web.de> wrote:

> alias ssh="ssh $* ; cd ."
>

$* has no special meaning in an alias.  You should instead use a function,
like this:

function ssh
{
    command ssh $@
    cd .
}

..wayne..