Archiving by size [error]

Question

Data archiving

Tried to archive like this.

find docs/ -size -100k -print | xargs tar -czvf archive.tar.gz

So.

find docs/ -size -100k > target.txt
tar czvpf test.tar.gz -T target.txt

Gives an error "bash: fork: Cannot allocate memory"

I archived the files in a third way, through a php script. But I want to understand.
1) Why is there not enough memory? The target.txt file turned out to be relatively small, less than 1Mb
2) Is the problem solved somehow without php?

Answer 1

"fork: Cannot allocate memory" is already a lack of memory to just start a new process, and not find / pack. Did you check the free RAM BEFORE executing these commands?

Answer 2

If there are a lot of files, then try this.

tar cf archive.tar --files-from /dev/null
find docs/ -size -100k -exec tar rf archive.tar {} \;
gzip -9 archive.tar