How to make a while loop with multiple conditions stop?

How to make a while loop with multiple conditions stop?

In other words, repeat as long as (number2 is null OR number2 = 404) AND (number2 != 200) AND (number1 <= 12). Note that you need some sort of grouping here, to make the precedence of AND and OR explicit.

How to conditionally do something if a command failed?

How to conditionally do something if a command succeeded or failed. That’s exactly what bash’s if statement does: if command ; then echo “Command succeeded” else echo “Command failed” fi. Adding information from comments: you don’t need to use the [ ] syntax in this case. [ is itself a command, very nearly equivalent to test.

How to break out of a loop in Bash?

I want to write a Bash script equivalent to that. But what I usually used and as all the classic examples I read have showed, is this: It offers no help about how to do while (1) {} and break;, which is well defined and widely used in C, and I do not have to read data for stdin. Could anyone help me with a Bash equivalent of the above C code?

How to tell Bash to exit after SIGINT?

You need to tell bash to exit after SIGINT as well. You can do this by putting a trap “exit” INT before the loop. The %% tells the bash built-in kill that you want to send a signal (SIGTERM by default) to the most recently suspended background job in the current shell, not to a process-id.

What is the error number in a throw statement?

The THROW statement raises an exception and transfers execution to a CATCH block of a TRY CATCH construct. The following illustrates the syntax of the THROW statement: The error_number is an integer that represents the exception. The error_number must be greater than 50,000 and less than or equal to 2,147,483,647.

Why are there two variables in a while loop?

This also logically separates the semantics of the two variables. The number1 variable controls the number of iterations, while number2 is strictly for controlling the action to take based on the outcome of your mystery command. Thanks for contributing an answer to Unix & Linux Stack Exchange! Please be sure to answer the question.

What is the syntax of the throw statement in SQL?

The THROW statement raises an exception and transfers execution to a CATCH block of a TRY CATCH construct. The following illustrates the syntax of the THROW statement: THROW [ error_number, message, state ]; Code language: SQL (Structured Query Language) (sql)

Is it bad to have multiple conditions in shell script?

This isn’t a bad thing per se, it depends on what you want to do. Without knowing what it is you are trying to do it’s kinda hard to give advise on how to proceed. And like I stated before, it could be that this is the correct sollution to your problem.

Can you leave a loop if none of the conditions are true?

Even though none of the conditions is true the loop kept going. Any way to overcome this? Once you enter the loop, you cannot leave it if you depend on the content of the value variable (the while statement will always be true). This isn’t a bad thing per se, it depends on what you want to do.