呢喃

fastapi 关闭接口文档 import os from fastapi import FastAPI env = os.getenv('env') if env != 'develop':
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#!/usr/bin/env bash echo -e "Enter Password:\c" # 在读取密码前禁止回显 stty -echo read password #
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python pandas sql 导出 Excel 并自动调整宽度 from sqlalchemy import create_engine import pandas as pd from
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crontab 查看所有用户的任务 cat /etc/passwd | cut -f 1 -d : | xargs -I {} sudo crontab -l -u {}

CentOS 7.x 安装配置redis-7.0.4集群 转 https://www.osyunwei.com/archives/12817.html 调整内核参数 vi /etc/sysctl
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清除 dns 缓存 windows ipconfig /flushdns mac sudo killall -HUP mDNSResponder chrome chrome://net-inte
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shell 字符串做变量 a='name' name='b' echo ${name} echo ${!a} 变量默认值的写法 ${变量-默认值}