commandlinefu.com is the place to record those command-line gems that you return to again and again.
You can sign-in using OpenID credentials, or register a traditional username and password.
Subscribe to the feed for:
There are 9 alternatives - vote for the best!
This will show the amount of physical RAM that is left unused by the system.
Here we instead show a more real figure for how much free RAM you have when taking into consideration buffers that can be freed if needed.
Unix machines leave data in memory but marked it free to overwrite, so using the first line from the "free" command will mostly give you back a reading showing you are almost out of memory, but in fact you are not, as the system can free up memory as soon as it is needed.
I just noticed the free command is not on my OpenBSD box.
If you can do better, submit your command here.
You must be signed in to comment.