shell数组介绍

array[key]=value # array[0]=one,array[1]=two

array=(var1 var2 var3 ... varN)

array=( [1]=one [2]=two [3]=three )

array="one two three"
echo ${array[0|@|*]}
#把array变量当作数组来处理，但数组元素只有字符串本身

${#array[@]}
${#array[*]}

${array[key]}
# ${array[1]}

unset array[1] # 删除数组中第一个元素
unset array #删除array数组

array=( [0]=one [1]=two [2]=three [3]=four )
${array[@]:1} # two three four,除掉第一个元素后所有元素
${array[@]:0}#表示所有元素
${array[@]:0:2} # one two
${array[@]:1:2} # two three

filename=(`ls`)
for var in ${filename[@]};do
echo $var
done