目录
- 0.vim脚本规范
- 1.猜数字
- 2.棋盘
- 3.九九乘法表
- 4.echo yes or no
- 5.复制Linux命令和库
- 6.斐波那契数列（兔子数列）
- 7.冒泡法排序
- 8.等腰三角形
- 9.生成证书和授权
0.vim脚本规范
vi ~/.vimrc
autocmd BufNewFile *.sh exec ":call SetTitle()"
func SetTitle()
if expand("%:e")=='sh'
call setline(1,"#!/bin/bash")
call setline(2,"#")
call setline(3,"#*************************************")
call setline(4,"#author: zyx")
call setline(5,"#file: ".expand("%"))
call setline(6,"#email: [email protected]")
call setline(7,"#version: 1.0")
call setline(8,"#date: ".strftime("%Y-%m-%d"))
call setline(9,"#description: test script")
call setline(10,"#*************************************")
endif
endfunc
1.猜数字
#!/bin/bash
x=$[RANDOM%10+1]
while read -p "please your number1-10:" num;do
#echo $num
if [ "$num" -eq "$x" ];then
echo your gueess right.
break
elif [ "$num" -lt "$x" ];then
echo letter
else
echo more
fi
done
2.棋盘
#!/binbash
red="\033[41m"
blue="\033[44m"
cloend="\033[0m"
#echo -e "$red $cloend"
for j in {1..8};do
if [ $[j%2] -eq 1 ];then
for i in {1..8};do
if [ $[i%2] -eq 1 ];then
echo -e "$red $cloend\c"
else
echo -e "$blue $cloend\c"
fi
done
elif [ $[j%2] -eq 0 ];then
for k in {1..8};do
if [ $[k%2] -eq 0 ];then
echo -e "$red $cloend\c"
else
echo -e "$blue $cloend\c"
fi
done
fi
echo
done
3.九九乘法表
#!/bin/bash
for i in {1..9};do
for j in $(seq $i);do
let k=i*j
echo -e "$i x $j = $k\t\c"
#echo -e "${j}x$i=$[j*i]\t\c"
done
echo
done
4.echo yes or no
#!/bin/bash
read -p "Input yes or no: " yn
[[ "$yn" =~ ^[yY]([Ee][Ss])?$ ]] && { echo yes;exit 0; }
[[ "$yn" =~ ^[Nn][Oo]?$ ]] && { echo no;exit 1; }
echo please input yes or no.
5.复制Linux命令和库
#!/bin/bash
f_dir=/mnt/sysroot
#判断指令是否存在
input_cmd(){
while :;do
read -p "plsease input cmd or quit: " cmd
if [ -z "$cmd" ];then
echo please input cmd
continue
elif [ $cmd == "quit" ];then
exit 88
elif ! which $cmd &> /dev/null;then
echo no $cmd command
continue
else
break
fi
done
}
#复制命令
cp_cmd(){
cmd_name=`which --skip-alias $cmd`
cmd_dir=`dirname ${cmd_name}`
[ -d ${f_dir}${cmd_dir} ] || mkdir -p ${f_dir}${cmd_dir}
[ ! -f ${f_dir}${cmd_name} ] && { cp ${cmd_name} ${f_dir}${cmd_name};echo $cmd copy finshed.; } || echo $cmd is exist.
}
#复制命令库
cp_cmd_lib(){
for lib_name in `ldd /usr/bin/$cmd | sed -r '1d;s/.*[[:space:]](\/.*) .*/\1/g'`;do
lib_dir=`dirname ${lib_name}`
[ -d ${f_dir}${lib_dir} ] || mkdir -p ${f_dir}${lib_dir}
[ -f ${f_dir}${lib_name} ] || cp ${lib_name} ${f_dir}${lib_name}
done
echo "backup ${cmd}'s library finished"
}
main(){
while :;do
input_cmd
cp_cmd
cp_cmd_lib
done
}
main
6.斐波那契数列（兔子数列）
#!/bin/bash
fact(){
if [ $1 -eq 0 ];then
echo 0
elif [ $1 -eq 1 ];then
echo 1
else
echo $[`fact $[$1-1]`+`fact $[$1-2]`]
fi
}
fact $1
#f(n)=f(n-1)+f(n-2)
7.冒泡法排序
#!/bin/bash
declare -a arry
read -p "plaeas input some numbers: " -a arry
for((c=1;c<=${#arry[@]};c++));do
for i in $(seq 1 $[${#arry[*]}-1]);do
if [ ${arry[$[$i-1]]} -gt ${arry[$i]} ];then
#两个数用异或对调
let arry[$[$i-1]]=arry[$[$i-1]]^arry[$i]
let arry[$i]=arry[$[$i-1]]^arry[$i]
let arry[$[$i-1]]=arry[$[$i-1]]^arry[$i]
fi
done
done
echo ${arry[@]}
8.等腰三角形
#!/bin/bash
read -p "Please input the length: " n：
for i in `seq 1 $n`
do
for((j=$n;j>i;j--))
do
echo -n "@"
done
for k in $(seq 1 $[2*$i-1]);do
echo -n "*"
done
echo
done
9.生成证书和授权
#!/bin/bash
dir=/etc/pki/CA
# 建立CA
ca_build(){
umask 077 &&
openssl genrsa -out ${dir}/private/cakey.pem 4096 &&
openssl req -new -x509 -key ${dir}/private/cakey.pem -out ${dir}/cacert.pem -days 365 < ${dir}/serial &&
echo ca build successful.
}
# 申请证书
ca_apply(){
umask 066 &&
openssl genrsa -out /data/test.key 1024
openssl req -new -key /data/test.key -out ${dir}/test.csr <
