Ich habs mal so gemacht...
bash-2.03$ x="1,23,43,53,85,134"; for i in $(echo ${x} | tr "," "\n" );do if [ ${i} -eq "85" ] ; then echo "${i} is equal 85"; else echo "${i} is not equal 85";fi ;done;
1 is not equal 85
23 is not equal 85
43 is not equal 85
53 is not equal 85
85 is equal 85
134 is...