Running "df -k " on all platforms

[tg2003]

Hi,

I'm writing a wrapper that tells me the free space and percentage on some file systems.
I need it to work on all UNIX and Linux platforms.

Currently I'm thinking about a good regular expression that covers all platforms by using "df -k", but I'm not sure it's the best. It's a lot of work and testing.

Do you have some idea? a better one?

Thanks in advance!

 

[LKBrwnDBA]

Start with something like this:

#!/bin/ksh
>df.txt
for srv in server1 server2 server3 server4 server5
do
  echo "Server: $srv">>df.txt
  ssh $srv "df -k" >>df.txt
done

----------------------------------------------------------------------------
The person who says it can't be done should not interrupt the person doing it. -- Chinese proverb

 

[Annihilannic]

It's an interesting problem; I had a similar challenge when I was writing my dispus script. Unfortunately platforms vary a lot, some keep the device and filesystem entries on the same line, some split them across two lines, some alter their behaviour in this respect with command-line switches (-P on Linux), or if the output is piped somewhere instead of to stdout (Solaris), some use different commands altogether (bdf on HP-UX), some report kilobytes by default, others require -k (Solaris), others require -kv (SCO), and some report nonsensical output with -kv (Solaris - note column headings!).

So, in short... you have your work cut out for you. I ended up writing platform specific handling for the weirder ones, and using some of my own code to join lines that were split across two rather than relying on their individual behaviour.

Annihilannic.