A
Angelo NN
Hello -
New Ruby user here.
I was wondering if you could point me in the right direction:
- I save the output of a WMIC query to a temp text file on Windows 2008
using Ruby:
system("wmic MEMORYCHIP get CAPACITY /VALUE > tmp")
- Next, I try to read this file back in order to extract a value from
the output:
contents = File.open('tmp', 'r:') { |f| f.read }
However, when I run this in irb, the file is imported with the following
leading characters: \x00 and others. If I open the actual tmp file in
Windows, it displays the correct text.
Is there a way to just import that text only? Is this something to do
with encoding?
Thank you for your help.
Here is the entire session in irb:
irb(main):002:0> system("wmic MEMORYCHIP get CAPACITY /VALUE >
tmp")
=> true
irb(main):003:0> contents = File.open('tmp', 'r:') { |f| f.read }
=>
"\xFF\xFE\n\x00\n\x00N\x00o\x00d\x00e\x00,\x00C\x00a\x00p\x00a\x00c\x00i\x00t
\x00y\x00\n\x00\n\x00P\x00S\x00,\x008\x005\x008\x009\x009\x003\x004\x005\x009\x0
02\x00"
irb(main):004:0>
New Ruby user here.
I was wondering if you could point me in the right direction:
- I save the output of a WMIC query to a temp text file on Windows 2008
using Ruby:
system("wmic MEMORYCHIP get CAPACITY /VALUE > tmp")
- Next, I try to read this file back in order to extract a value from
the output:
contents = File.open('tmp', 'r:') { |f| f.read }
However, when I run this in irb, the file is imported with the following
leading characters: \x00 and others. If I open the actual tmp file in
Windows, it displays the correct text.
Is there a way to just import that text only? Is this something to do
with encoding?
Thank you for your help.
Here is the entire session in irb:
irb(main):002:0> system("wmic MEMORYCHIP get CAPACITY /VALUE >
tmp")
=> true
irb(main):003:0> contents = File.open('tmp', 'r:') { |f| f.read }
=>
"\xFF\xFE\n\x00\n\x00N\x00o\x00d\x00e\x00,\x00C\x00a\x00p\x00a\x00c\x00i\x00t
\x00y\x00\n\x00\n\x00P\x00S\x00,\x008\x005\x008\x009\x009\x003\x004\x005\x009\x0
02\x00"
irb(main):004:0>