Linux in a Nutshell, Fourth Edition

Name

for

Synopsis

                  for (
                  i
                  =
                  lower 
                  ; 
                  i
                  <=
                  upper 
                  ; 
                  i
                  ++)
                  command
               

While the value of variable i is in the range between lower and upper, do command. A series of commands must be put within braces. <= or any relational operator can be used; ++ or -- can be used to increment or decrement the variable.