[preibie]

Hallo,

I pipe the openFoam output from the shell in a file called log.sim. To plot some date I use awk like:

awk -f logs/foamLog.awk log.sim

In foamLog.awk are extractions like

# Extraction of T_min fluid or solid
/Min.max.T:/ {
    extract($0, "Min/max T:", val)
    file="./logs/T_min_" T_minCnt
    print Time "    " val[1] > file
    T_minCnt++
}

My problem now is that I want also extract the second variable after T_min. This tow variables are standing in a line like this:
Min/max T:283.05995 283.15

[gschaider]

Originally Posted by preibie

Hallo,

I pipe the openFoam output from the shell in a file called log.sim. To plot some date I use awk like:

awk -f logs/foamLog.awk log.sim

In foamLog.awk are extractions like

# Extraction of T_min fluid or solid
/Min.max.T:/ {
    extract($0, "Min/max T:", val)
    file="./logs/T_min_" T_minCnt
    print Time "    " val[1] > file
    T_minCnt++
}

My problem now is that I want also extract the second variable after T_min. This tow variables are standing in a line like this:
Min/max T:283.05995 283.15

Wouldn't the second value be available as $2 or so? But surly you know more about awk than I do (my last experiences are year ago), I'm more a Python-person

[preibie]

Thanks for your help, but it do not work.
A possibitity is to read bouth variables and use only the second. Another is to read the last Variable in the line.

Has anybody an Idea??

[Aurelien Thinat]

Hi,

To extract values from output, with awk I use something like :

"cat log.out |grep 'Tmin/max ='|awk '{print $i}' > Tmin.dat"

replacing i by the number I want. In your case it should be something like 3 for Tmin and 4 for Tmax

In another case, for extracting density rho max/min : 2.14 3.16 I used :

"cat log.out |grep 'rho max/min' | cut -d' ' -f5|tr -d ',' > rhomin.dat"

[preibie]

Thanks for your idea! it runs with this :

/Min.max.T:/ {
    file="./logs/T_max_" T_maxCnt
    print Time "    " $3 > file
    T_maxCnt++
}

[student666]

Just for the records. I have been able to plot using bash scripting only, as I don't know awk...

cp -f postProcessing/domain2/minMax/0/field* minMax.dat
sed -i -e '/p/d' minMax.dat
sed -i -e '/U/d' minMax.dat
gnuplot.exe  //.exe --> I'm running openfoam with MySYS2 on windows
set title "Max Temperatures"
set autoscale xy
set grid
set ylabel "T [K]"
set xlabel "Iterations"
plot ' path to the file minMax.dat' using 1:8 w l title "T max"