date=$(date -d yesterday +%Y-%m-%d)
time=" 23:30:00"
datetime=${date}${time}
echo $datetime
[root@。。。]2020-03-01 23:30:00
[root@。。。]find -newermt $datetime
find: paths must precede expression: 23:30:00
Usage: find [-H] [-L] [-P] [-Olevel] [-D help|tree|search|stat|rates|opt|exec] [path...] [expression]
这里提示错误
但是下面这样就能找到文件
[root@。。。]find -newermt '2020-03-01 23:30:00'
time=" 23:30:00"
datetime=${date}${time}
echo $datetime
[root@。。。]2020-03-01 23:30:00
[root@。。。]find -newermt $datetime
find: paths must precede expression: 23:30:00
Usage: find [-H] [-L] [-P] [-Olevel] [-D help|tree|search|stat|rates|opt|exec] [path...] [expression]
这里提示错误
但是下面这样就能找到文件
[root@。。。]find -newermt '2020-03-01 23:30:00'