Sun Microsystems, Inc.
spacerspacer
spacer   www.sun.com docs.sun.com | | |  
spacer
black dot
   
A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z
    
 
User Commandsshift(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 assignments.
  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 attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
AvailabilitySUNWcsu

SEE ALSO

 

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


SunOS 5.9Go To TopLast Changed 15 Apr 1994

 
      
      
Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.