shift(1)

NAME

     shift - shell built-in function to traverse either a shell's
     argument list or a list of field-separated words

SYNOPSIS

  sh
     shift [n]

  csh
     shift [variable]

  ksh
     * shift [n]

DESCRIPTION

  sh
     The positional parameters from $n+1 ... are renamed $1 ... .
     If n is not given, it is assumed to be 1.

  csh
     The components  of  argv,  or  variable,  if  supplied,  are
     shifted  to  the left, discarding the first component. It is
     an error for the variable not to be set or to  have  a  null
     value.

  ksh
     The positional parameters from $n+1 $n+1 ... are renamed  $1
     ...,  default  n is 1. The parameter n can be any arithmetic
     expression that evaluates to a non-negative number less than
     or equal to $#.

     On this man page, ksh(1) commands that are preceded  by  one
     or  two * (asterisks) are treated specially in the following
     ways:

     1. Variable assignment lists preceding the command remain in
        effect when the command completes.

     2. I/O redirections are  processed  after  variable  assign-
        ments.

     3. Errors cause a script that contains them to abort.

     4. Words, following a command preceded by ** that are in the
        format  of  a  variable assignment, are expanded with the
        same rules as a  variable  assignment.  This  means  that
        tilde substitution is performed after the = sign and word
        splitting and file name generation are not performed.

ATTRIBUTES

     See attributes(5) for descriptions of the  following  attri-
     butes:
     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | SUNWcsu                     |
    |_____________________________|_____________________________|

SEE ALSO

     csh(1), ksh(1), sh(1), attributes(5)