====== Linux Memory ======

===== Clear Buffers & Cache =====

<file>
sync && echo 3 > /proc/sys/vm/drop_caches
</file>

If you use sudo:

<file>
su -c "sync && echo 3 > /proc/sys/vm/drop_caches"
</file>

This one-liner also shows before and after stats:

<file>
echo Before: && free -m && echo After: && sync && echo 3 > /proc/sys/vm/drop_caches && free -m
</file>