Awk - using one field separator, then another?

[Tony Walker]

Hi guys,

Here's one thats been bugging me for a while. Basically, I want to pull out the current load average from uptime ie :
10:46am up 55 days, 14:06, 159 users, load average: 3.34, 3.28, 3.39

Theory goes, use and FS of ":" and get the 4th field, then use an FS of "," and get the first thus ending up with 3.34. I'm sure there are better ways but I've come across a similar problem before and want to know whether this is possible in awk?

As always, help greatly appreciated.

Cheers,

Tony

[Mark Grant]

This depends a little bit on how you want the information returned toyou but how about

expr "`uptime`" : ".*load average: \(.*\)" and pipe the
output into "cut" or "awk" or whatever.

[Jean-Luc Oudart]

Tony

1) you can replace "," with spaces either with sed or tr before you pipe results into awk

2) you can use the split function in awk
split(s,a,fs) fs = field separator

Rgds,
Jean-Luc

[Tony Walker]

Jean-luc - I should have awarded you 10points! Just tried the split function in awk and it works just how I want.

Thanks!

Tony

[Jean-Luc Oudart · Accepted solution]

Usually the "bunny" means that solution is provided and complete.

Rgds,
Jean-Luc

[Rob_132]

Zero points

It looks like you Jean-Luc, and you now have the opportunity to award them. At any rate, another approach could be:

echo $In|cut -d\: -f2|cut -d\, -f[1|2|3]

choose which field [1|2|3] you want....
Not looking for points - just providing an alternative.

Rob

Zero points

[Rob_132]

Zero points

make that,

"It looks like you OWE Jean-Luc...."

Rob

Zero points

[Rob_132]

Zero points

(sorry!!)...AND *Y O U* will be the one to promote Jean-Luc to *W I Z A R D*

Too compelling to pass up, I'd say!

Rob

Zero points

[Tony Walker]

Thanks for the input Rob, I'll give you some points you didn't ask for later:) So, you the points system then...

[Steven E. Protter]

Come on, make Jean-Luc a Wizard.

I would like to see a complete example.

SEP

[Tony Walker]

Steve - just for you..

uptime|awk -F: '{MYVAR=$4;split(MYVAR,mv,",");print mv[1]}'

[Hein van den Heuvel]

The -F argument and corresponding FS variable is a full regular expression. So in this case you can just use both "," and ":" as seperators giving:

uptime|awk -F[:,] '{print $7}'

fwiw,
Hein.