title: what does "./wallet balance" mean?
body: <p>I am a beginner with bash and I'm using an open source file which have this sentence <code>./wallet balance</code> at the end of the file , Could any body tell me what dose it mean ?! here's the code inside the opensource file :</p>
  
  <pre><code>#!/usr/bin/env bash
  C_RED="\033[31;01m"
  C_GREEN="\033[32;01m"
  C_YELLOW="\033[33;01m"
  C_BLUE="\033[34;01m"
  C_PINK="\033[35;01m"
  C_CYAN="\033[36;01m"
  C_NO="\033[0m"
  
  ################################################################################
  ### MAIN #######################################################################
  ################################################################################
  
  if [[ ${#} -gt 0 ]]; then
      printf "${C_RED}balance does not require any argument.\n"
      printf "${C_YELLOW}usage: ${C_NO}%s\n" "balance"
      exit 1
  fi
  ./wallet balance 
  </code></pre>