shift: Linux Commands HowTo
shift: Shift positional parameters
Shift positional parameters to the left by n.
Syntax
shift [n]
Options
n : The number of parameters to shift (default = 1)
The positional parameters from
n 1 ... $#
are renamed to
$1 ... $#-n 1
Parameters represented by the numbers $# to n 1 are unset.
n must be a positive number less than or equal to $#.
The return status is zero unless n is greater than $# or less than zero.
shift is a BOURNE shell command and a POSIX `special? builtin.
“Here lies Colonel Chinstrap, drowned, From the inside” - Shifting sands, The Goon Show
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