Unix script problem

Bimpo

1. The problem statement, all variables and given/known data

Trying to find how many numbers contains 5 between 1 to 4321

2. Relevant equations

n/a

3. The attempt at a solution

#!/bin/bash
typeset -i current=1
typeset -i times=0
while [ $current -le 4321 ] ; do
if [ ] ; then <<<<<<<<<<< stuck here, not sure what to put in if, tried grep etc nonthing works yet
times=times+1
fi
current=current+1
done
echo there are $times numbers that has a 5

Bimpo

nvm solved it just gonna add this for future people whos gonna look up this kind of problem in google

if [[ $current = *[5] ]] ; then