Shell Programming and Scripting

"cut" command maybe an alternative to awk way to split any file with fixed or variable lenghth fields and definable field separator.

Code:

sort -nk4 file | awk '$4 ~ "^[0|55|100]" && $5==1{ file=$4"_"$5".txt"; print file }'

Is this a "catch 22" ? Base on your data sample will be only one file

gch
Thanks for you "cut" suggestion.

danmero
Seems like, but not.

The sample file contains "layers" for a visualization program.

For example:

0.000000 1.txt
66576.867188 4232.454102 2.944000 0.000000 1
76576.867188 6232.454102 1.944000 0.000000 1
86576.867188 5232.454102 3.944000 0.000000 1

55.000000 2.txt
66576.867188 4232.454102 0.855956 55.000000 2
76576.867188 6232.454102 0.792961 55.000000 2
86576.867188 5232.454102 0.705243 55.000000 2

represent layer 1 @ 0.000000 and layer 2 @ 55.000000.

I want to select "layer" files for visualization by entering their 4th and 5th column values on the command line.

Hope this outlines what I am trying to do.

Thanks for all the help so far, really appreciated.

I think the below code snippet may help you.
the sample_log contains the sample input.

Code:

cat sample_log | while read LINE
do
#$echo $i
fl_name=`echo $LINE | awk '{ print $5 }'`
#echo $fl_name
fl_nm=$fl_name.txt
#echo $fl_nm
var1=`echo $LINE | awk '{print $4 }'`
echo $var1 " " $fl_name >$fl_nm
echo $LINE >>$fl_nm
echo "............................. $var1 $fl_name">>$fl_nm
done

Something like that ?

Code:

# fourth="0.000000|55.000000|100.000000"
# fifth=1
# sort -nk4 file | awk '$4 ~ x && $5==y{ file=$4"_"$5".txt"; print > file }' x=$fourth y=$fifth

siba
Thanks, your code works just like danmero's earlier solution.

danmero
Much appreciation, you have answered my last question.