#!/bin/bash
# random variable
var1="49274"

echo "Example variable is : $var1"

#simple loop with 5 steps

for i in 1 2 3 4 5
do

# This command will call the current variable and will search
# if $i from loop is in the var , loop starts in 1 and finishes in 5

test=$(echo "$var1" | grep -o $i)

# If grep did not found the $i value on var then set the variable
# ex$i ($i could be from 1 to 5) some text , else then found that
#number in the var and set the text in 2nd var different

if [[ -z "$test" ]]
then
ex$i="not there"
else
ex$i="is there"
fi
done

# Here the loop as finished and i expect that all the (ex$) variables
# have some text in there
# However it is popping an error

echo "1 = $ex1"
echo "2 = $ex2"
echo "3 = $ex3"
echo "4 = $ex4"
echo "5 = $ex5"

#!/bin/bash
# random variable
var1="49274"

echo "Example variable is : $var1"
#simple loop with 5 steps
for i in 1 2 3 4 5
do
# This command will call the current variable and will search
# if $i from loop is in the var , loop starts in 1 and finishes in 5
test=$(echo "$var1" | grep -o $i)

# If grep did not found the $i value on var then set the variable
# ex$i ($i could be from 1 to 5) some text , else then found that
#number in the var and set the text in 2nd var different
if [[ -z "$test" ]]
then
echo "$i= not there"
else
echo "$i=is there"
fi
done

#!/bin/bash

var1="49274"

echo "Example variable is : $var1"

for i in 1 2 3 4 5
do

test=$(echo "$var1" | grep -o $i)

if [[ -z "$test" ]]
then
ex[$i]="not there"
else
ex[$i]="is there"
fi
done

echo "1 = ${ex[1]}"
echo "2 = ${ex[2]}"
echo "3 = ${ex[3]}"
echo "4 = ${ex[4]}"
echo "5 = ${ex[5]}"

...
ex[$i]="not there"
...

echo "1 = ${ex[1]}"
echo "2 = ${ex[2]}"
echo "3 = ${ex[3]}"
echo "4 = ${ex[4]}"
echo "5 = ${ex[5]}"

if [[ $var1 == *$i* ]]
then
  ex[$i]="is there"
else
  ex[$i]="not there"
fi

# or
[[ $var1 == *$i* ]] && ex[$i]="is there" || ex[$i]="not there"