If you do a lot of work in some particular directories, it can be handy
that take you to each directory quickly.
For example, this C shell alias lets you type
pwr to change to the
alias pwr cd /books/troff/pwrtools
(If your shell doesn't have aliases, you can use a. A won't work, though, because it runs in a .)
When you pick the alias names, it's a good idea not to conflict with command names that are already on the system. Article 44.21 shows how to pick a new name.
If you have a lot of these directory-changing aliases, you might want to put them in a separate file named something like .cd_aliases. Then add these lines to your .cshrc file:
alias setcds source ~/.cd_aliases setcds
That reads your aliases into each shell.
If you edit the .cd_aliases file, you can read the new file into your
shell by typing
setcds from any directory.
Finally, if you're in a group of people who all work on the same directories, you could make a central alias file that everyone reads from their .cshrc files as they log in. Just use the setup above.