实例详解shell中$和$@的区别
时间:2014-11-23 14:06 来源:linux.it.net.cn 作者:IT网
shell编程语言中$与$@的区别，分享一个完整的示例代码，深入探讨下二者的区别
shell中$和$@的区别
例子：
复制代码代码示例:
#!/usr/bin/bash
#site: www.jbxue.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
执行结果：
复制代码代码示例:
$ ./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
以上通过示例，介绍了shell中$和$@的区别，希望对大家有所帮助。
(责任编辑：IT)
shell编程语言中$与$@的区别，分享一个完整的示例代码，深入探讨下二者的区别 shell中$和$@的区别
例子：
复制代码代码示例:
#!/usr/bin/bash
#site: www.jbxue.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
执行结果：
复制代码代码示例:
$ ./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 以上通过示例，介绍了shell中$和$@的区别，希望对大家有所帮助。 (责任编辑：IT) |