A Script that Tars Files Under a Certain Size

[Drek]

I have a fairly simple backup script that I run every Sunday morning. The problem is that some of the directories that I would like to back up have some very large files that I don't want to back up. Does anyone have an idea how I might have the script tar all files in a directory under a certain size?

I'll paste in the contents of my backup script so you can see what it does:

#!/bin/bash

config_dir=/etc/backups/
tdy=`date +%y%m%d`
days_to_keep=112

get_file_names ()
	{
	new_file=$file_name"_"$tdy.tgz
	if [ $(ls $file_name"_"* | wc -w) != 0 ]
	then
		old_file_exists=1
		last_file=`ls -r $file_name"_"* | sed 1q`
	fi
	}

compare_files ()
	{
	if [ -n "$old_file_exists" ]
	then
		old_file_exists=""
		cmp -i 512 -s $last_file $new_file
		if [ $? = "0" ]
		then
			rm $new_file
		fi
	fi
	}

cd /var/backups/server_backups

find . -mtime +$days_to_keep -exec rm {} \;

exec < $config_dir"backup_files"
while read file_name files ; do
	get_file_names
	tar --exclude=*cache --exclude=*compiled --exclude=*Temp -czf $new_file $files 2>&1 | grep -v "Removing leading"
	compare_files
done

Basically it reads a configuration file I have that lists the name that I want to give the backup up file, and the directory or file that I want back up, one name and file per line, then tars them up, excluding temp directories and caches, and then compares the sizes of the last backup with the size of the new backup and if they are the same it deletes the new backup (this isn't a perfect way to do it I know, but I can't think of any other reasonably simple way to do it).

What I would like to do is have the tar command exlude all files above a certain size.

[burschik]

Use "find -size" to select or deselect files above or below a certain size.

[i92guboj]

As said above, find -size can list these files you need. Then you can, for example, pipe that list into xargs to tar them or whatever.

[Drek]

Thanks for the responses. I will do some googling on xargs...