I have the following output file from a venn program.

[1, 2],106
[1, 3],2556
[2, 3],5207
[1, 2, 3],232
[2],7566
[3],8840
[1],5320

I need a command to get each line result number as variable argument in a script like this:

$area1=here it must come the results after [1],
$area2=here it must come the results after [2],
$area3=here it must come the results after [3],
$n12=here it must come the results after [1, 2],
$n13=here it must come the results after [1, 3],
$n23=here it must come the results after [2, 3],
$n123=here it must come the results after [1, 2, 3],

these results will then be used in the script below to draw a venn diagram.

cat << catfile >> $prefix1-VennDiagram.R
library(VennDiagram);
venn.diagram(
 x = list(
 "$sample1" = c(1:$area1, $(($area1+1)):$(($area1+$n12)), $(($area1+$n12+1)):$(($area1+$n12+$n123)), $(($area1+$n12+$n123+1)):$(($area1+$n12+$n123+$n13))),
 "$sample2" = c($(($area1+$n12+$n123+$n13+1)):$(($area1+$n12+$n123+$n13+$area2)), $(($area1+1)):$(($area1+$n12)), $(($area1+$n12+1)):$(($area1+$n12+$n123)), $(($area1+$n12+$n123+$n13+$area2+1)):$(($area1+$n12+$n123+$n13+$area2+$n23))),
 "$sample3" = c($(($area1+$n12+$n123+$n13+$area2+$n23+1)):$(($area1+$n12+$n123+$n13+$area2+$n23+$area3)), $(($area1+$n12+1)):$(($area1+$n12+$n123)), $(($area1+$n12+$n123+1)):$(($area1+$n12+$n123+$n13)), $(($area1+$n12+$n123+$n13+$area2+1)):$(($area1+$n12+$n123+$n13+$area2+$n23)))
 ),
 filename = "$prefix1-VennDiagram.tiff",
 col = "transparent",
 fill = c("red", "blue", "green"),
 alpha = 0.5,
 label.col = c("darkred", "white", "darkblue", "white", "white", "white", "darkgreen"),
 cex = 2.5,
 fontfamily = "arial",
 fontface = "bold",
 cat.default.pos = "text",
 cat.col = c("darkred", "darkblue", "darkgreen"),
 cat.cex = 2.0,
 cat.fontfamily = "arial",
 cat.fontface = "italic",
 cat.dist = c(0.06, 0.06, 0.03),
 cat.pos = 0
 );
catfile

Rscript $prefix1-VennDiagram.R
exit

Any help?

Thanks

Here is a one liner:

sed 's/^.*],/ /' yourfile|tr -d 'n'|sed -e '$a'

If you are passing this thing as options to a command you may remove the last sed and use

sed 's/^.*],/ /' yourfile|tr -d 'n'

You could use awk to print the last comma-separated field of each line, and then (provided the argument list does not exceed its limits) xargs to assemble them into a single line:

$ awk -F, 'print $NF' yourfile | xargs
106 2556 5207 232 7566 8840 5320