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2012-09-01 23:15:15
原文地址：shell反撇单引双引作用 作者：houtian150
'' 引用输入的内容
"" 引用定义变量里的内容
`` 可执行命令 等同于$()
/ 转义和换行的意思
a=1
echo -e "\n" $a
1
echo -e "\n" "$a"
1
echo -e "\n" '$a'
$a
echo -e "\n" "now time:" `date`
echo -e you curretn working dieectory is `pwd`
echo -e you curretn working dieectory is $(pwd)
you current working directory is /root
find . \
> -name * -print | wc -l;
10
