Running into For loop error in bash script

Question

My bash script has a for loop that just does not seem to work and I can't seem to figure out what the issue is.

Here is the error I am getting:

((: j = : syntax error: operand expected (error token is " ")

For loop:

for ((j = $Frompointer; j > $Topointer-1; j--))
do
 echo "Print recovery points" | xargs >> Del.txt        
done

Not sure what's wrong with my for loop, any guidance is much appreciated!

John Kugelman · Accepted Answer · 2021-05-25 23:53:05Z

1

It appears that $Frompointer is empty. j = $Frompointer is expanding to just j = which is a syntax error.

answered May 25, 2021 at 23:53

John Kugelman

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1 Comment

In this case, the error message should say error token is "= " (at least in my bash).