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User Commands 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 per-
formed.
SunOS 5.10 Last change: 15 Apr 1994 1
User Commands shift(1)
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)
SunOS 5.10 Last change: 15 Apr 1994 2
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This page was generated on Wed Sep 12 11:25:27 GMT 2007
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