$*和$@

#!/bin/bash
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

 

从这个例子可以看出来$*和$@的差别，$*被引号括起来和不被引号括起来是有区别的，而$@被引号括起来和不被引号括起来是没有区别的。