Hello,
I am having trouble with the syntax with a conditional statement in a BASH script involving multiple conditions. Any suggestions would be greatly appreciated!

if [ "$sString" != "2" && "$sString" != "5" && "$sString" !="8
" && "$tString" !="3" && "$tString" != "5" ]; then
array=("${array[@]}" "$dnNum" )
fi
i receive this error:
./testscript: [: missing `]'

Did you really have this on two lines like this?
If so put a \ character right after !="8"

they are infact on the same line, but i did try adding a '\'. I also tried the if statment with only two "conditions".
i.e.
f [ "$sString" != "2" && "$sString" != "5"]; then
array=("${array[@]}" "$dnNum" )
fi

The last example is failing because of your "5" sitting next to the "]" with no whitespace.

Your first example will work if you replace "&&" with "-a" or if you replace your brackets "[" and "]" with double brackets "[[" and "]]".

Example:

if [ "$sString" != "2" -a "$sString" != "5" ]; then
...
fi

if [[ "$sString" != "2" && "$sString" != "5" ]]; then
...
fi

thank you so much...this was the first time i've posted on a forum, and it def proved its usefulness...