26 мар. 2015 г. · You can use -z to test whether a variable is unset or empty: if [[ -z $DB || -z $HOST || -z $DATE ]]; then echo 'one or more variables are undefined' exit 1 fi ... How do I compare two string variables in an 'if' statement in ... How can I compare a string to multiple correct values in Bash? Bash if statement with multiple variables - Stack Overflow How do I compare 2 boolean variables in shell in If statement Другие результаты с сайта stackoverflow.com

3 февр. 2013 г. · I am trying to write a single IF statement which can check two variables at once. I have two variables, for example: $VARA $VARB Both with either contain a 0 ... Test if multiple variables are set - Unix & Linux Stack Exchange How to write an if statement with multiple conditions bash - How do i use the && and || operators with more than two ... Bash OR operator not evaluating multiple variable [closed] Другие результаты с сайта unix.stackexchange.com

19 сент. 2017 г. · Let's say you have a dozen variables in your script and you need to check if they have values set. The usual approach can get a bit tedious.

3 авг. 2023 г. · In this blog post, we'll look at four different methods you can use to check if two strings are equal. We'll use examples to explain each method.

21 нояб. 2023 г. · The most basic way to compare two strings in bash is to check whether or not they're the same. We do this using double equal signs (==) for equality.

18 мар. 2024 г. · In this tutorial, we'll learn about these operators and how to compare variables with numbers in Bash.

24 окт. 2008 г. · I need to check if \\$1 or \\$2 are empty before continuing but I don't know if bash has any logic of the sort. This is what I'm looking for ...

7 июн. 2012 г. · I have a number of variables that I need to verify that they match. I have two databases of usernames, passwords, and speed packages.

18 мар. 2024 г. · Multiple variable assignment is also known as tuple unpacking or iterable unpacking. It allows us to assign multiple variables at the same time in one single ...

Use == operator with bash if statement to check if two strings are equal. You can also use != to check if two string ...