1、定义关联数组 磁盘分区（键） 利用率（值）；键值对先存放的后取出
file=/app/disk
if [ ! -e $file ];then
file=`touch /app/disk`
fi
echo $file
df | grep "/dev/sd" >> $file
while read line ;do
index=`echo "$line" | cut -d " " -f1`
value=`echo "$line" | sed -r 's/.* ([0-9]+)%.*/\1/'`
declare -A dUse
dUse["$index"]="$value"
done < ${file}
echo ${dUse[*]}
2、将下图所示，实现转置矩阵matrix.sh 1 2 3 1 4 7 4 5 6 ===> 2 5 8 7 8 9 3 6 9
juzheng[01]=2
juzheng[02]=3
juzheng[10]=4
juzheng[11]=5
juzheng[12]=6
juzheng[20]=7
juzheng[21]=8
juzheng[22]=9
display() {
for((i=0;i<size;i++));do
for((j=0;j<size;j++));do
echo -n "${juzheng[${i}${j}]} "
done
echo
done
}
#display before matrix
echo "display before matrix"
display
#matrix
for((i=0;i<size;i++));do
for((j=i+1;j<size;j++));do
temp=${juzheng[$i$j]}
juzheng[$i$j]=${juzheng[$j$i]}
juzheng[$j$i]=$temp
done
done
#after matrix
echo "after matrix"
display
3、使用expect 工具让客户端自动登录ssh服务的远程主机并创建haha用户和重置密码
ip=$1
user=$2
passwd=$3
echo "-----"
echo $passwd
expect <<EOF
set timeout 10
#auto login
spawn ssh $user@$ip
expect {
"yes/no"{ send "yes\n";exp_continue }
"password" { send "${passwd}\n" }
}
#create user and change password after login
expect "]#" { send "useradd haha\n" }
expect "]#" { send "echo yangguang | passwd --stdin haha\n" }
#logout
expect "]#" { send "exit\n" }
#quit expect
expect eof
EOF
