How to traverse all files under the specified directory under Linux and delete files created before the specified number of days

The script reads as follows:

#!/bin/Bashfunctiondelete_file{dir=$1 Days=$[$2-1] forIinch`Find$dir-type F-ctime +$days ' Do  RM-RF $i Done}
 whileRead Line Dodir=`Echo$line |awk '{print $}'' days=`Echo$line |awk '{print $}'' Delete_file $dir$days Done<file. txt

Where the function delete_file is used to delete the Dir directory in the file created before days.

The following while the read line statement is used to read the contents of file.txt lines by row.

File.txt content is similar to:

Dir1 1

Dir2 2

DIR3 1

...

That is, delete files created 1 days before the Dir1 directory, files created 2 days ago in the Dir2 directory, files created 1 days before the Dir3 directory, and so on.

How to traverse all files under the specified directory under Linux and delete files created before the specified number of days