alias, and then use that name instead, to save
time and avoid making typos. This is useful for anything you do
frequently. An example may be
alias psp 'psnup -2r \!* | lpr -h -Pvalkyr'
which prints ps-files aligning two pages next to each other on one
piece of paper.
Just put these aliases at the end of your .cshrc
file, and then type source .cshrc to let the shell
know about them. You'll have do this only once - the next time you log
in the .cshrc file will be read in automatically
anyway.
You can also use aliases to specify which options of common commands you want to use. For example, if you want to be asked every time before any file gets deleted, you can define
alias rm 'rm -i'
By giving this alias the same name as the original command you in
effect override it, so be careful not to use the names of existing
commands for unrelated aliases. Also, while your
aliases always have priority, they do override each other, so be sure
you don't have an alias with the same name already later in the file.
If you want to use the original, unaliased version of your command,
for example to remove a lot of files in one directory without having
to type y a hundred times (as can happen e.g. in
the .netscape/cache directory), use the command
preceded by \ i.e. for example
\rm