Comments on: Finding free disk space in Ruby

By: bob

bob — Wed, 28 Jul 2010 15:32:54 +0000

@bob piped into tail

By: bob

bob — Wed, 28 Jul 2010 15:31:55 +0000

…if you’re going to make a system call, then just use du and df.

By: Iulian Dogariu

Iulian Dogariu — Tue, 23 Feb 2010 11:49:55 +0000

Thanks, Martin! I updated the post to incorporate your tip.

By: Martin Rehfeld

Martin Rehfeld — Sat, 23 Jan 2010 20:29:56 +0000

Please bear in mind that not every filesystem uses 1k blocks. To make sure you always get sizes calculated with 1k blocks, use df -Pk

By: iljkmittaa

iljkmittaa — Tue, 14 Jul 2009 17:20:23 +0000

“Parse” is a fascinating word. I truly believe that. Thanks to mr. Dogariu for reminding it to me.

By: Alin

Alin — Tue, 16 Dec 2008 17:25:01 +0000

Other version without so many os commands usage:

def disk_space(path, used)
path_info = `df -P #{path}`.split(“\n”)[1]
if(used)
path_info.split(” “)[2].to_i
else
path_info.split(” “)[3].to_i
end
end

p disk_space(“/”, true) – returns the used space for “/” mount point (bytes)
p disk_space(“/”, false) – returns the available space for “/” mount point (bytes)