c shell script 를 작성할때 함수 만드는 방법좀 알려주세요.

http://www.iu.hio.no/~mark/unix/unix.html

위사이트의 Sub-shells () 항목에 보니 다음과 같이 나와있네요.
이걸 참고해서 어떻게든 활용해 봐야겠어요.

The C-shell does not allow you to define subroutines or functions, but you can create a local shell, with its own private variables by enclosing commands in parentheses.

#!/bin/csh

cd /etc

( cd /usr/bin; ls * ) > myfile

pwd

This program changes the working directory to /etc and then executes a subshell which inside the brackets changes directory to /usr/bin and lists the files there. The output of this private shell are sent to a file `myfile'. At the end we print out the current working directory just to show that the `cd' command in brackets had no effect on the main program.

Normally both parentheses must be on the same line. If a subshell command line gets too long, so that the brackets are not on the same line, you have to use backslash characters to continue the lines,

( command \
command \
command \
)