日常脚本合集, 欢迎提交合并请求

Miscellaneous scripts, Welcome PR

Name	描述	Description
git-pull-all	并行git pull当前目录中所有git项目	Pull all git project in current dir in parallel
linux-bing-wallpaper	每天换bing壁纸	Set bing background as wallpaper every day
alert-wechat	微信企业号告警	WeChat corporate account send alert
auto-update-repo	自动更新rpm repo	Auto create rpm repo when packages changed
check-mtimes	检查文件更新时间	Check file modified time to ensure backup is working