Comment puis-je changer mon tcsh invite à montrer mon répertoire de travail actuel?

Vous pouvez utiliser:

set prompt = '[%n@%m %c]$ '

%n pour le nom d'utilisateur, %m du nom de domaine jusqu'à la première ., et %c pour le dernier répertoire de la partie. Il existe un grand nombre de ces substitutions sont disponibles, vous pouvez trouver une liste de ces dans tcsh(1), reproduites ci-dessous pour plus de commodité.

À l'aide de `pwd` ne fonctionne pas, parce que le cshrc fichier est en lecture seule une fois sur shelll de démarrage, pas à chaque changement de répertoire.

Je voudrais savoir la différence entre les deux .cshrc fichier et .bashrc fichier.

La cshrc fichier est utilisé par csh et tcsh, le bashrc fichier est utilisé par bash. Bien qu'ils servent le même but, ils sont différents programmes (comme ~/.mozilla/firefox et ~/.config/chromium).

           %/  The current working directory.
%~  The current working directory, but with one's  home  direc‐
tory  represented  by `~' and other users' home directories
represented  by  `~user'  as  per  Filename   substitution.
`~user'  substitution happens only if the shell has already
used `~user' in a pathname in the current session.
%c[[0]n], %.[[0]n]
The trailing component of the current working directory, or
n  trailing  components if a digit n is given.  If n begins
with `0', the number  of  skipped  components  precede  the
trailing  component(s)  in the format `/<skipped>trailing'.
If the ellipsis shell variable is set,  skipped  components
are  represented  by  an  ellipsis  so  the  whole  becomes
`...trailing'.  `~' substitution is done as in `%~'  above,
but  the  `~'  component  is ignored when counting trailing
components.
%C  Like %c, but without `~' substitution.
%h, %!, !
The current history event number.
%M  The full hostname.
%m  The hostname up to the first `.'.
%S (%s)
Start (stop) standout mode.
%B (%b)
Start (stop) boldfacing mode.
%U (%u)
Start (stop) underline mode.
%t, %@
The time of day in 12-hour AM/PM format.
%T  Like `%t', but in 24-hour format (but see  the  ampm  shell
variable).
%p  The  `precise'  time  of  day in 12-hour AM/PM format, with
seconds.
%P  Like `%p', but in 24-hour format (but see  the  ampm  shell
variable).
\c  c is parsed as in bindkey.
^c  c is parsed as in bindkey.
%%  A single `%'.
%n  The user name.
%N  The effective user name.
%j  The number of jobs.
%d  The weekday in `Day' format.
%D  The day in `dd' format.
%w  The month in `Mon' format.
%W  The month in `mm' format.
%y  The year in `yy' format.
%Y  The year in `yyyy' format.
%l  The shell's tty.
%L  Clears  from the end of the prompt to end of the display or
the end of the line.
%$  Expands the shell or environment variable name  immediately
after the `$'.
%#  `>'  (or the first character of the promptchars shell vari‐
able) for normal users, `#' (or  the  second  character  of
promptchars) for the superuser.
%{string%}
Includes string as a literal escape sequence.  It should be
used only to change terminal attributes and should not move
the  cursor  location.  This cannot be the last sequence in
prompt.
%?  The return code of the command  executed  just  before  the
prompt.
%R  In prompt2, the status of the parser.  In prompt3, the cor‐
rected string.  In history, the history string.
`%B', `%S', `%U' and `%{string%}' are available in only  eight-
bit-clean shells; see the version shell variable.
The  bold,  standout  and underline sequences are often used to
distinguish a superuser shell.  For example,
> set prompt = "%m [%h] %B[%@]%b [%/] you rang? "
tut [37] [2:54pm] [/usr/accts/sys] you rang? _
If `%t', `%@', `%T', `%p', or `%P' is used, and noding  is  not
set,  then print `DING!' on the change of hour (i.e, `:00' min‐
utes) instead of the actual time.
Set by default to `%# ' in interactive shells.