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#!/bin/bash | ||
#test.sh | ||
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#awk | ||
#-F 分割 print 输出 | ||
#cat /etc/passwd | awk -F: '{print $1"=>"$2"=>"$3}' | ||
#cat /etc/passwd | head -5 | awk -F: '{print $1"=>"$2"=>"$3}' | ||
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#以冒号进行分割 | ||
#for i in `cat /etc/passwd | awk -F: '{print $1"=>"$2"=>"$3}'`; do | ||
# echo $i | ||
#done | ||
# | ||
## NR 行数 $0代表整行 | ||
#df | awk '{if(NR==3){print}}' | ||
# | ||
## int 将参数转换成整数 | ||
#df | awk '{if(NR==3){print int($4)}}' | ||
# | ||
##总共多少行 | ||
#df | awk 'END{print NR}' | ||
# | ||
##总共多少列 | ||
#df | awk 'END{print NF}' | ||
# | ||
##文件中第一列 匹配192.168.1.1的行数 输出第一列 | ||
#cat file | awk '$1~/192.168.1.1/{print $1}' | ||
# | ||
##文件中第一列 不匹配192.168.1.1的行数 输出第一列 | ||
#cat file | awk '$1!~/192.168.1.1/{print $1}' | ||
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#sed 行定位的使用 | ||
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# 输出包含bash的数据 | ||
#cat file | sed -n '/bash/'p | ||
# | ||
## 输出包含bash到最后的数据 | ||
#cat file | sed -n '/bash/,$'p | ||
# | ||
#df | sed -n '3'p| awk '{print $2}' | ||
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#uniq -c file 打印紧挨着的重复 | ||
#uniq -d file 打印重复行 | ||
#uniq file 去重 | ||
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#wc -l file 打印行数 | ||
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#sort 排序 | ||
#cat file | sort | uniq -c | ||
# | ||
##倒叙 | ||
#cat file | sort -r | uniq -c | ||
# | ||
##根据第二列进行排序 sort -t: -k2 -r //以冒号分割 | ||
#cat file | sort -k2 -r | ||
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#split 行分割 按5行分割文件 sptab sptac | ||
#split -5 file spt | ||
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#/var/log/nginx/log/host.access.log | ||
#cat /var/log/nginx/log/host.access.log | sort -k1 | uniq -c | ||
#cat /var/log/nginx/log/host.access.log | awk '{print $1}' | sort | uniq -c //1秒内 同一个ip访问次数 | ||
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#!/bin/bash | ||
#shell_char.sh | ||
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#字符串比较 | ||
read -p "please your name: " name | ||
read -p "please your age: " age | ||
echo $name | ||
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## 字符串比较 = 不等于是!= 字符串是 -z | ||
if [ $name = 'admin' ];then | ||
echo "欢迎登陆" | ||
fi | ||
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#数字比较用 -eq -gt -lt | ||
if [ $age -gt 10 ];then | ||
echo "成年了" | ||
fi |
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#!/bin/bash | ||
#test.sh | ||
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##linux 启动流程 | ||
# | ||
##查看sshd在所有级别下的开启和关闭状态 | ||
#chkconfig --list sshd | ||
# | ||
##sshd 服务在35级别下开启 | ||
#chkconfig --level 3 sshd on | ||
# | ||
##sshd 服务在35级别下关闭 | ||
#chkconfig --level 3 sshd off | ||
# | ||
##快速设置sshd 服务 在2345级别开启 | ||
#chkconfig sshd on | ||
# | ||
##快速设置sshd 服务 在2345级别关闭 | ||
#chkconfig sshd off | ||
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#实例: 安装apache应用程序,然后让apache服务在3级别启动 | ||
#rpm -qa | grep httpd 查看rpm安装的包 | ||
#rpm -e httpd* 卸载rpm安装的包 | ||
#pstree | grep httpd 查看某个进程是否启动 | ||
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#查看摸个级别可启动的服务 | ||
#cd /etc/rc.d/rc3.d/ | ||
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#查看当前运行级别 runlevel | ||
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#rpm包软件 | ||
#服务脚本 /etc/rc.d/init.d/httpd | ||
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#源代码软件 | ||
#服务脚本 /usr/local/apache2/bin/apachectl | ||
#开启 /usr/local/apache2/bin/apachectl start|stop | ||
#开机开启 vi /etc/rc.d/rc.local /usr/local/apache2/bin/apachectl start | ||
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# /etc/rc.d/rc.local | ||
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#源代码安装三步走 | ||
#生成配置文件 ./configure --prefix=/usr/local/apache | ||
#编译 make | ||
#安装 make install (安装到 --prefix 要求的目的地) | ||
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#自定义服务脚本 | ||
case $1 in | ||
start) | ||
echo "test start" | ||
sleep 1 | ||
;; | ||
stop) | ||
echo "test stop" | ||
sleep 1 | ||
;; | ||
restart) | ||
echo "test restart" | ||
sleep 1 | ||
;; | ||
*) | ||
echo 'please input start|stop|restart ...' | ||
;; | ||
esac | ||
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#把服务脚本改成标准的rpm脚本 | ||
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#通过service把自定义脚本进行开启和关闭 | ||
#将脚本拷贝到init.d 下面就可以 service test start 要能接收参数 | ||
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#通过chkconfig把自定义脚本设置开机启动 需要加入.有两种方式。可以写到 vi /etc/rc.d/rc.local 中。 也可以chkconfig httpd on | ||
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# chkconfig: 2345 90 20 | ||
# description: test server daemon | ||
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/usr/share/nginx/html/panda/shell/test.sh start | ||
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#!/bin/bash | ||
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# -e输出语句里面的转义符 换行 | ||
#echo -e "ewewe\ndasdasd" | ||
## -n 输出语句里面的转义符 不换行 | ||
#echo -n "请输入你的名字: " | ||
#read name | ||
#echo "欢迎您$name" | ||
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# 颜色 | ||
# \033[前景颜色;背景颜色m | ||
# \033[0m 恢复系统颜色 | ||
#前景色 30黑色 31红色 32绿色 33棕色 34蓝色 35紫色 36青色 37白色 | ||
#背景色 40黑色 41红色 42绿色 43棕色 44蓝色 45紫色 46青色 47白色 | ||
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time=`date '+%Y-%m-%d'` | ||
echo -e "今天是\033[32;40m${time}\033[0m,天气很美好" | ||
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#./test.sh | tee menu.txt 有利于边输出边保存 | ||
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#输出前10行并输出行号 | ||
#cat /etc/passwd|head|nl | ||
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#nl 输出行号 | ||
nl /etc/passwd | ||
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#文档原型输出 | ||
cat<<x | ||
please input your name: | ||
1)aaaaaaaaa | ||
2)aaaaaaaaa | ||
3)aaaaaaaaa | ||
4)aaaaaaaaa | ||
x |
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#!/bin/bash | ||
#test.sh | ||
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# | ||
#find ./ -name "*.txt" | ||
#find ./ -name "*.doc" | ||
#find ./ -name "[a-z]*.txt" | ||
#find ./ -name "[a-z]*.txt" | ||
#find ./ -name "file[1-5].txt" | ||
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#find /etc -name ifcfg-eth0 | ||
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#查权限 | ||
#find ./ -perm 777 -type f | ||
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#查类型 | ||
#find ./ -type f 是目录 | ||
#find ./ -type d 是文件 | ||
#find ./ -type l 是链接 | ||
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#查找root用户创建的文件 | ||
#find -user root | ||
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#5天以内修改的文件 | ||
#find /var -mtime -5 | ||
#5天以前修改的文件 | ||
#find /var -mtime +5 | ||
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#stat /etc/passwd 查看文件相关信息 | ||
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#大于1M的文件 | ||
#find ./ -size +1000000c | ||
#小于1M的文件 | ||
#find ./ -size -1000000c | ||
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#xargs 将find找到的文件 经过后面的处理 | ||
#find | xargs rm -rf | ||
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#正则表达式 | ||
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#!/bin/bash | ||
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for i in `ls /home` | ||
do | ||
echo $i | ||
done | ||
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for (( i=0; i<10; i++ )); do | ||
echo $i | ||
sleep 0.2 | ||
done |
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#!/bin/bash | ||
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#函数 | ||
function add(){ | ||
# $1 接收第一个参数 $2接收第二个参数 | ||
num=$1 | ||
tot=0 | ||
for ((i=0; i<=$num; i++)); do | ||
tot=$(($tot+$1)) | ||
done | ||
echo $(($tot + $2)) | ||
} | ||
#传参 | ||
add 10 20 |
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