[c shell] variable question

saiz66 · 09-28-2004, 01:47 PM

If I have a variable such as username = {abc def ghi} Is there a way I could evaluate each of these names separately? For example, I wanted to echo each of the 3 seperate, echo "abc", echo "def" and echo "ghi".. Any ideas?

chrism01 · 09-28-2004, 01:53 PM

Don't know c-shell, but

Code:

echo $username|cut -d' ' -f1

etc would work in ksh, bash....

saiz66 · 09-28-2004, 04:16 PM

thanks chris.. how would I find the end though? for your code:

Code:

echo $username|cut -d' ' -f1

it only shows the first one... I figured that if you put f2 and f3 you will get the other parts.. but how can I get it since I don't know how many number of names there would be in that variable to display them all? Also I found out that you can do

Code:

username[1]

and it would display the first name.. but I dont know how to find the end of the string.. is there a EOF?

michaelk · 09-28-2004, 07:12 PM

Try

Code:

  foreach name ( user1 user2 user3 )
      echo $name
   end

BTW it might be time to invest in a shell programming book

saiz66 · 09-28-2004, 08:27 PM

thanks for the reply!!!! and what programming book would you recommend?

chrism01 · 09-29-2004, 09:45 AM

Try this: http://freeos.com/guides/lsst/
and this: http://www.icon.co.za/~psheer/book/index.html.gz (Linux HOWTO book, inc shell prog)