I have this variable:

>echo $br_name
srxa wan-a1 br-wan3-xa1 0A:AA:DD:C1:F1:A3 ge-0.0.3 srxa wan-a2 br-wan3-xa2 0A:AA:DD:C1:F2:A3 ge-0.0.3

I am trying to create a conditional where it detects whether ge-0.0.3 is repeated more than 1 time in my variable $br_name

For example:

if [[ $br_name has ge-0.0.3 repeated more than one time ]]
then
    echo "ge-0.0.3 is shown more than once"
else
    :
fi

simple word

If your word would be "easy", you can detect the occurrences count with:

echo "123 123 123" | sed "s/123 /123\n/g" | wc -l

In which the word is replace for the same but with \n and then wc count the lines

or you can try one of these:

• Count occurrences of a char in a string using Bash
• How to count number of words from String using shell

complex

Since your word is "complex" or you will want a pattern, you will need regex:

• https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions
• https://linuxconfig.org/advanced-bash-regex-with-examples

script.sh

count=0

for word in $1; do
  if [[ "$word" =~ .*ge-0\.0\.3.* ]]
  then
    count=$(($count+1))
  fi
done

if [ "$count" -gt "1" ];
then
  echo "ge-0.0.3 is shown more than once"
else
  if [ "$count" -eq "0" ];
  then
    echo "ge-0.0.3 is not shown"
  else
    echo "ge-0.0.3 is shown once"
  fi
fi

execution

bash script.sh "srxa wan-a1 br-wan3-xa1 0A:AA:DD:C1:F1:A3 ge-0.0.3 srxa wan-a2 br-wan3-xa2 0A:AA:DD:C1:F2:A3 ge-0.0.3"

grep

With grep you can get the ocurrence count

ocurrences=( $(grep -oE '(ge-0\.0\.3)' <<<$1) )
ocurrences_count=${#ocurrences[*]}
echo $ocurrences_count