home | O'Reilly's CD bookshelfs | FreeBSD | Linux | Cisco | Cisco Exam  

UNIX in a Nutshell: System V Edition

UNIX in a Nutshell: System V EditionSearch this book
Previous: Reference: wait Chapter 5
The C Shell
Next: Reference: @


while (






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 .


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

Previous: Reference: wait UNIX in a Nutshell: System V Edition Next: Reference: @
Reference: wait Book Index Reference: @

The UNIX CD Bookshelf Navigation The UNIX CD BookshelfUNIX Power ToolsUNIX in a NutshellLearning the vi Editorsed & awkLearning the Korn ShellLearning the UNIX Operating System