常用日期格式
# 2023-01-18 14:33:09 date "+%Y-%m-%d %H:%M:%S"
判断日期是否在某个时间段之内
bash – Calculate time difference between two dates – Unix & Linux Stack Exchange
CURRENT_TIME=$(date '+%H%M') [ "0805" -lt "$CURRENT_TIME" ] && [ "$CURRENT_TIME" -lt "0910" ] && echo "Skip between 08:50-09:10" && exit [ "1350" -lt "$CURRENT_TIME" ] && [ "$CURRENT_TIME" -lt "1410" ] && echo "Skip between 13:50-14:10" && exit [ "1920" -lt "$CURRENT_TIME" ] && [ "$CURRENT_TIME" -lt "1940" ] && echo "Skip between 19:20-19:40" && exit