企业实用脚本16
企业案例:写网络服务独立进程模式下rsync的系统启动脚本
例如：/etc/init.d/rsyncd{start|stop|restart} 。
要求：
1.要使用系统函数库技巧。
2.要用函数，不能一坨SHI的方式。
3.可被chkconfig管理
#!/bin/bash
[ -f /etc/init.d/functions ]&& . /etc/init.d/functions||exit 2
Start(){
if [ `lsof -i:873|wc -l` -gt 0 ];then
echo "rsync is running..."
else
rsync --daemon
[ `lsof -i:873|wc -l` -gt 0 ]&&action "rsync start..." /bin/true
fi
return $RETVAL
}
Stop(){
if [ `lsof -i:873|wc -l` -eq 0 ];then
echo "rsync is not running..."
else
killall rsync
sleep 3
[ `lsof -i:873|wc -l` -eq 0 ]&&action "rsync stop..." /bin/true
fi
return $RETVAL
}
main(){
case "$1" in
start|sTART)
Start
;;
stop|STOP)
Stop
;;
restart|RESTART)
Stop
sleep 2
Start
;;
*)
echo -e "USAGE:$0 {start|stop|restart}"
exit 1
esac
}
main $1
exit $RETVAL企业实用脚本17
1、执行脚本后，输入用户英文名字全拼，产生随机数01-99之间的数字，前面已经出现的数字，下次不能再出现
2、第一个输入名字后，屏幕输出信息，并将名字和数字记录到文件里，程序不能退出继续等待输入。
#!/bin/bash
Name(){
while true
do
read -p "Input you name:" a
[ ! -z "$a" ]&&break
done
}
check_num(){
exec < random_num.txt
while read line
do
A=`echo $line|awk ‘{print $2}‘`
[ "$num" = "$A" ]&&result=1&&break
done
result=0
}
random_num(){
for((i=1;i<5;i++))
do
Name
num=`echo $RANDOM|cut -c 1-2`
[ `cat random_num.txt|grep $num|wc -l` -gt 0 ]&&result=1||result=0
#check_num
#echo $result
[ $result -eq 1 ]&&continue
echo "you name is $a,num is $num,done."
echo $a $num >> random_num.txt
done
}
main(){
echo "Name num" > random_num.txt
random_num
}
main企业实用脚本18
已知下面的字符串是通过RANDOM随机数变量md5sum|cut-c 1-8截取后的结果，请破解这些字符串对应的md5sum前的RANDOM对应数字？
21029299
00205d1c
a3da1677
1f6d12dd
cf6a5205
#!/bin/sh
array=(
21029299
00205d1c
a3da1677
1f6d12dd
cf6a5205
)
for((m=1;m<100000;m++))
do
A=`echo $m|md5sum|cut -c 1-8`
for((n=0;n<${#array[@]};n++))
do
if [ "$A" = "${array[$n]}" ];then
echo "$m = ${array[$n]}"
echo "$m = ${array[$n]}">>crack.txt
else
continue
fi
done
[ $(($m%100)) -eq 0 ]&&echo "$m...done"
done
echo "all done."企业实用脚本19
批量检查多个网站地址是否正常
要求：shell数组方法实现，检测策略尽量模拟用户访问思路
http://www.etiantian.org
http://www.taobao.com
http://oldboy.blog.51cto.com
http://10.0.0.7
#!/bin/sh
array=(
http://www.etiantian.org
https://www.taobao.com
http://oldboy.blog.51cto.com
http://10.0.0.7
http://www.lichengbing.com
http://www.lichengbing.cn
)
for((i=0;i<${#array[@]};i++))
do
status=`curl -I -s -o /dev/null -w "%{http_code}\n" ${array[$i]}`
if [ $status -eq 200 -o $status -eq 301 ];then
echo "${array[$i]} OK"
else
echo "${array[$i]} NO"
fi
done企业实用脚本20
1、按单词出现频率降序排序！
2、按字母出现频率降序排序！
the squid project provides a number of resources toassist users design,implement and support squid installations. Please browsethe documentation and support sections for more infomation
#!/bin/sh
word="the squid project provides a number of resources toassist users design,implement and support squid installations. Please browsethe documentation and support sections for more infomation"
#A=`echo $word|egrep -o ‘[a-zA-Z]+‘|sort|uniq -c|sort -r`
#A=`echo $word|sed ‘s#[,.]##g‘|tr " " "\n"|sort|uniq -c|sort -r`
#A=`echo $word|sed ‘s#[,. ]#\n#g‘|grep -v "^$"|awk ‘{array[$1]++}END{for(key in array)print key,array[key]}‘|sort -k2rn`
A=`echo $word|awk ‘BEGIN{RS=""}{for(i=1;i<=NF;i++)if($i !~ /[ ,.]/)count[$i]++}END{for(key in count)print key,count[key]}‘|sort -k2rn`
B=‘echo $word|tr "[,. ]" " "|sed ‘s# ##g‘|grep -o "\w"|sort|uniq -c|sort -rn‘
B=`echo $word|tr "[,. ]" " "|sed ‘s# ##g‘|sed -r ‘s#(.)#\1\n#g‘|sort -r|uniq -c|sort -rn
`
echo $A
echo $B企业实用脚本21
请用shell或Python编写一个正方形接收用户输入的数字
#!/bin/sh read -p "Input A Number:" num for ((i=1;i<=$num;i++)) do for((m=1;m<=$((2*$num));m++)) do printf "*" done printf "\n" done [root@db02 shell]# sh shell_21.sh Input A Number:5 ********** ********** ********** ********** #!/bin/sh read -p "Input A Number:" num for ((i=1;i<=$num;i++)) do for((m=1;m<=$num;m++)) do printf "■" done printf "\n" done [root@db02 shell]# sh shell_21_02.sh Input A Number:6 ■■■■■■ ■■■■■■ ■■■■■■ ■■■■■■ ■■■■■■ ■■■■■■ #!/bin/sh read -p "Input a num:" num for((i=1;i<=$num;i++)) do for((n=$num;n>$i;n--)) do printf " " done for((m=1;m<=((2*$i-1));m++)) do printf "*" done printf "\n" done [root@db02 shell]# sh shell_21_03.sh Input a num:7 * *** ***** ******* ********* *********** *************
原文地址：http://lilongzi.blog.51cto.com/5519072/1837860
