Question

I am having a problem with the parsing and comparison of data as follows.

thinningCriteria="$(cat thinningCriteria$j.k)"
minThickElement="$(cat minimumThickness$j.k)";
d= "$(cat BHF$j.k)";
echo $d
echo $minThickElement
echo $thinningCriteria  

for d it gives errror as follows, so this is the first problem.

N o r m a l    t e r m i n a t i o n
./dynaOffenRigid.sh: line 137: 1000: command not found

where

d= "$(cat BHF$j.k)";   is on line 137  and the file has a value of 1000 

secondly I have to compare two values like below

if (( $minThickElement -lt $thinningCriteria ))

then

fi

in this case the error is as follows.

999979
986667
./dynaOffenRigid.sh: line 147: ((: -lt 986667 : syntax error in expression (error token is "986667 ")

the only value in BHF$j.k is 1000
the only value in thinningCriteria$j.k    is   999979
the only value in minimumThickness$j.k    is   986667   

I dont know what am I doing wrong when I am comparing, and why there is are error for my shell.
please all tell me the usage of while loop I used

while [ $minThickElement -gt $thinningCriteria ]  but same error.

I expect some suggestions from experts. As I cant find the solution.

best regards

Answer 1

problem 1:
change

d= "$(cat BHF$j.k)";

to

d="$(cat BHF$j.k)"

problem 2:

try

[[ $minThickElement -lt $thinningCriteria ]]