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) |