As mentioned in the variables subsection, numeric values are different from strings. Strings are typically evaluated like this:
#!/bin/bashMY_NAME="John"NAME_1="Bob"NAME_2="Jane"NAME_3="Sue"Name_4="Kate"if [ "${MY_NAME}" == "Ron" ]; then echo "Ron is home from vacation"elif [ "${MY_NAME}" != ${NAME_1}" && "${MY_NAME}" != ${NAME_2}" && "${MY_NAME}" == "John" ]; then echo "John is home after some unnecessary AND logic"elif [ "${MY_NAME}" == ${NAME_3}" || "${MY_NAME}" == ${NAME_4}" ]; then echo "Looks like one of the ladies are home"else echo "Who is this stranger?"fi
In the preceding snippet, you might notice that the MY_NAME variable will be executed and the string John is home after some unnecessary AND logic will be echoed ...
