Shell Script error: “head: invalid trailing option — 1”

Question

I have this code in my shell(bash) script for splitting a file into smaller parts:

for (( i=$start; i<=$lineCount; i=i+$interval))
do
    temp=`expr $i + $int         


        

Answer 1

Problem is here:

command="head -$temp $fileName | tail -$interval > $tmpFileName"

and later:

`$command`    

Instead of storing whole piped command in a string you can directly execute the command:

head -$temp "$fileName" | tail -$interval > "$tmpFileName"