Bash function that takes a directory name and creates it then enters that folder

mkcd.sh

function mkcd() {
  # Check if the directory already exists
  if [ -d "$1" ]; then
    # If the directory already exists, print an error message
    printf "Error: directory '%s' already exists\n" "$1"
  else
    # If the directory does not already exist, create it
    mkdir "$1"

    # Check if the directory was successfully created
    if [ $? -eq 0 ]; then
      # If the directory was successfully created, cd into it
      cd "$1"
    else
      # If there was an error creating the directory, print an error message
      printf "Error: failed to create directory '%s'\n" "$1"
    fi
  fi
}