BASH - 删除超过 3 个月的文件？
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BASH - Delete files older than 3 months?
提问by anubhava
Delete files older than 3 months how?
如何删除超过 3 个月的文件？
For 90 days i know:
90 天我知道：
find /tmp/*.log -mtime +90 -type f -delete
But how do i know 3 months equal to always 90 days? how many exact days? Is there more better way to tell the -mtimeto follow months?
但是我怎么知道 3 个月等于 90 天？准确的天数是多少？有没有更好的方法告诉-mtime跟随months？
回答by anubhava
If you want exact number of days for 3 months then you can use:
如果您想要 3 个月的确切天数，则可以使用：
days=$(( ( $(date '+%s') - $(date -d '3 months ago' '+%s') ) / 86400 ))
and use it as:
并将其用作：
find /tmp/*.log -mtime +$days -type f -delete
Or directly in find:
或直接在find：
find /tmp/*.log -type f \
-mtime "+$(( ( $(date '+%s') - $(date -d '3 months ago' '+%s') ) / 86400 ))" -delete
