CODEWITHSUNDEEP
linuxbashshell
user4441082
user4441082

Reputation: 371

Using shell script to sort files then delete old files

I have a folder with some normal files. I want to sort them by their modified date, keeps the latest 20 entries, and from what's left, erases anything older than 20 days.

Here is my code to delete files those are > 20 days.

#!/bin/bash
cleanup="../some path/"

find $cleanup/*gz -mtime +20 -exec rm {} \;

However, I don't know how to keep the last modified 20 files, then doing the delete. How to fix it please?

Upvotes: 1

Views: 748

Answers (1)

Vytenis Bivainis
Vytenis Bivainis

Reputation: 2376

You can filter 20 filenames out with

awk 'NR > 20'

Full command:

find ...... | awk 'NR > 20' | xargs -r  rm

For example

seq 30 | xargs -i echo 'file{}' | awk 'NR > 20' | xargs  -r rm

Upvotes: 1

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