Bash script delete files older than n days ago based on the timestamp in filename? [duplicate]

问题

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Delete all files older than 30 days, based on file name as date (2 answers)

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I have some logs files with

 somefiles.log.YYYY-mm-dd

and I want to delete those files that are older than N days base on the timestamp in its filename.

回答1:

use cut command to retrieve YYYY-MM-dd part of filename. and use date command as following to convert it to time_t type.

date -d "YYYY-MM-dd" +%s

then you can compare time_t to determine which file should be deleted.

回答2:

Better delete based on creation time using find:

find /var/log/ -name somefiles.log.* -ctime +3 -delete

来源：https://stackoverflow.com/questions/35353801/bash-script-delete-files-older-than-n-days-ago-based-on-the-timestamp-in-filenam