实例详解shell中$和$@的区别

#!/usr/bin/bash
#site: www.jiaochengji.com
#
E_BADARGS=65 
  
if [ ! -n "$1" ] 
then 
  echo "Usage: `basename $0` argument1 argument2 etc." 
  exit $E_BADARGS 
fi 
echo 
index=1 
  
for arg in "$*" 
do 
  echo "Arg #$index = $arg" 
  let "index+=1" 
done 
echo "Entire arg list as single word." 
echo 
index=1 
  
for arg in "$@" 
do 
  echo "Arg #$index = $arg" 
  let "index+=1" 
done 
echo "Entire arg list as seperated words." 
echo 
index=1 
  
for arg in $* 
do 
  echo "Arg #$index = $arg" 
  let "index+=1" 
done 
echo "Entire arg list as seperated words." 
echo 
index=1 
  
for arg in $@ 
do 
  echo "Arg #$index = $arg" 
  let "index+=1" 
done 
echo "Entire arg list as seperated words." 
exit 0  
 

$ ./test.sh bi yutong 
 
Arg #1 = bi yutong 
Entire arg list as single word. 
 
Arg #1 = bi 
Arg #2 = yutong 
Entire arg list as seperated words. 
 
Arg #1 = bi 
Arg #2 = yutong 
Entire arg list as seperated words. 
 
Arg #1 = bi 
Arg #2 = yutong 
Entire arg list as seperated words