命令行参数

#!/bin/sh
# Scriptname: args
# Script to test command line arguments

echo The name of this script is $0.
echo The arguments are $*.
echo The first argument is $1.
echo The second argument is $2.
echo The number of arguments is $#.
oldargs=$*      # Save parameters passed in from the command line
                    
set Jake Nicky Scott   # Reset the positional parameters
echo All the positional parameters are $*.
echo The number of postional parameters is $#.
echo "Good-bye for now, $1 "

set `date`          #  Reset the positional parameters
echo The date is $2 $3, $6.
echo "The value of \$oldargs is $oldargs."

set $oldargs
echo $1 $2 $3