args

UNIX[1].shell范例精解(第4版)_code

#!/bin/bash
# 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 $#.
oldargs=$*		         
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