On Mar 14, 9:37 am, "tereglow" <[EMAIL PROTECTED]> wrote:
> Hello all,
>
> I come from a shell/perl background and have just to learn python. To
> start with, I'm trying to obtain system information from a Linux
> server using the /proc FS. For example, in order to obtain the amount
> of physical memory on the server, I would do the following in shell:
>
> grep ^MemTotal /proc/meminfo | awk '{print $2}'
>
> That would get me the exact number that I need. Now, I'm trying to do
> this in python. Here is where I have gotten so far:
>
> memFile = open('/proc/meminfo')
> for line in memFile.readlines():
> print re.search('MemTotal', line)
> memFile.close()
>
> I guess what I'm trying to logically do is... read through the file
> line by line, grab the pattern I want and assign that to a variable.
> The above doesn't really work, it comes back with something like
> "<_sre.SRE_Match object at 0xb7f9d6b0>" when a match is found.
Ok, two things:
1. You don't need the .readlines() part. Python can iterate over the
file object itself.
2. You don't need the re module for this particular situation; you
could simply use the 'in' operator.
You could write it like this:
memFile = open('/proc/meminfo')
for line in memFile:
if 'MemTotal' in line: print line
memFile.close()
[]s
FZero
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