如何将日期和时间戳从一种格式转换为另一种格式&在Linux Shell脚本中的比较

import datetime

# 将日期字符串转换为时间戳
date_string = "2022-01-01"
timestamp = datetime.datetime.strptime(date_string, "%Y-%m-%d").timestamp()
print("时间戳:", timestamp)

# 将时间戳转换为日期字符串
timestamp = 1640995200
date_string = datetime.datetime.fromtimestamp(timestamp).strftime("%Y-%m-%d")
print("日期字符串:", date_string)

#!/bin/bash

# 获取当前时间戳
current_timestamp=$(date +%s)
echo "当前时间戳: $current_timestamp"

# 比较两个时间戳大小
timestamp1=1640995200
timestamp2=1640995300

if [ $timestamp1 -gt $timestamp2 ]; then
    echo "timestamp1 大于 timestamp2"
elif [ $timestamp1 -lt $timestamp2 ]; then
    echo "timestamp1 小于 timestamp2"
else
    echo "timestamp1 等于 timestamp2"
fi

# 比较两个日期字符串
date_string1="2022-01-01"
date_string2="2022-01-02"

if [ "$date_string1" \< "$date_string2" ]; then
    echo "date_string1 小于 date_string2"
elif [ "$date_string1" \> "$date_string2" ]; then
    echo "date_string1 大于 date_string2"
else
    echo "date_string1 等于 date_string2"
fi