V6/usr/man/man1/shift.1

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.sh NAME
shift \*- adjust Shell arguments
.sh SYNOPSIS
.bd shift
.sh DESCRIPTION
.it Shift
is used in Shell command files to shift the
argument list left by 1,
so that old
.bd $2
can now be referred to by
.bd $1
and so forth.
.it Shift
is useful to iterate over several arguments
to a command file.
For example, the command file
.s3
.lp +5 0
: loop
.br
if $1x = x exit
.br
pr \*-3 $1
.br
shift
.br
goto loop
.s3
.i0
prints each of its arguments in 3-column format.
.s3
.it Shift
is executed within the Shell.
.sh "SEE ALSO"
sh (I)
.sh BUGS