How can I write a bash script?

Question

bash

I am writing a script to check if the certificate is installed or not

#!/bin/bash
echo "++++++++++++++ Установка списков отозванных сертификатов ++++++++++++++"
   vguc=$(/opt/cprocsp/bin/*/certmgr -inst -crl -store root -file vguc2.crl | egrep ErrorCode)
        if [ "$(vgus)" -eq "[ErrorCode: 0x00000000]" ]; then
        echo "СЕРТИФИКАТ УСТАНОВЛЕН"
        else
  echo "СЕРТИФИКАТ НЕ УСТАНОВЛЕН"
        fi

If done like this

/opt/cprocsp/bin/*/certmgr -inst -crl -store root -file vguc2.crl | egrep ErrorCode

then at the output [ErrorCode: 0x00000000]
but writes that it does not match, I do not understand what is wrong

Answer 1

Sense to check on the text if the completion code is erroneous?
In general, in the task it would not be bad to show the output

Answer 2

-eq is an operator for comparing numbers. Use == to compare strings.