while

while (



expression



)

      

commands

 

end

As long as expression is true (evaluates to non-zero), evaluate commands between while and end . break and continue can be used to terminate or continue the loop. See also example under shift .

Example

set user = (alice bob carol ted) while ($argv[1] != $user[1])    #Cycle through each user, checking for a match    shift user    #If we cycled through with no match...    if ($#user == 0) then      echo "$argv[1] is not on the list of users"      exit 1    endif end