检索文件的全名，按日期过滤 [英] Retrieving the full name of files, filtered by date
问题描述
$date = [datetime]("05/19/2014")
gci -Recurse | Select-Object FullName,LastWriteTime | Where-Object { $_.LastWriteTime.ToShortDateString() -ge $date.ToShortDateString() } | Format-Table
我正在尝试查找在 2014 年 5 月 19 日或之后更改的文件列表.这里发生了两件事:
I'm trying to find the list of files that have been altered on or after the 19th of May, 2014. Two things are happening here:
- 我收到的文件早在 2009 年就已被更改
- 表格的列非常宽，我会说大约 100 个字符左右(我可能会错得非常仔细)
如何获得正确的文件列表，另外，如何以可读的方式对它们进行排序?
How can I get the proper list of files and additionally, how can I sort them in such a manner as they are readable?
推荐答案
问题可能在于您如何进行比较.DateTime.ToShortDateString 方法使用您的进程正在使用的当前文化的任何短日期模式.不幸的是，我想不出一个例子，可以使 2009 年的日期以字符串形式显示大于 2014 年的日期.尝试直接比较日期时间对象.您可以使用 Date 属性来比较日期:
The issue may be in how you are doing your comparison. The DateTime.ToShortDateString method uses whatever the short date pattern for the current culture your process is using. Unfortunately, I can't think of an example that would make a date in 2009 appear to be greater than a date in 2014 in string form. Try just comparing the date-time object directly. You could just compare dates by using the Date property as such:
$date = [datetime]("05/19/2014")
gci -Recurse | Select-Object FullName,LastWriteTime | Where-Object { $_.LastWriteTime.Date -ge $date } | Format-Table -AutoSize
请注意，我不需要在 $date 变量上使用 Date 属性，就像在实例化一个只有日期的 DateTime 对象时一样信息，时间设置为 12:00 AM.Date 属性将提供一个值，该值具有原始 DateTime 对象的日期，但时间设置为 12:00 AM.
Note that I did not need to use the Date property on your $date variable, as when instantiating a DateTime object with only date information, the time is set to 12:00 AM. The Date property will provide a value with the date of the original DateTime object but with the time set to 12:00 AM.
我添加到 Format-Table 的 -AutoSize 参数将解决您的第二个问题，因为它会自动将列大小调整为合理的宽度.
The -AutoSize parameter I added to Format-Table will take care of your second question, as it will automatically resize columns to a sane width.
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