![]() ![]() If statement and else statement could be nested in bash. If then elif then else fi example: #!/bin/bashįi 4. If expression1 is false, it checks expression2, and if all the expression is false, then it enters into else block and executes the statements in the else block. It checks expression 1, if it is true executes statement 1,2. if, if you want to select one of many blocks of code to execute. Note: This article is part of the ongoing Bash Tutorial series. After the execution of if/else part, execution resume with the consequent statements. If the conditional expression returns zero, it jumps to else part, and executes the statement3 and 4. If the conditional expression is true, it executes the statement1 and 2. If the given expression returns zero, then consequent statement list is executed.įi 2. ![]() If the given conditional expression is true, it enters and executes the statements enclosed between the keywords “then” and “fi”. ![]() This if statement is also called as simple if statement. These are similar to the awk if statements we discussed earlier. In Bash, we have the following conditional statements: The ability to branch makes shell scripts powerful. These statements are used to execute different parts of your shell program depending on whether certain conditions are true. Bash conditional statements perform different computations or actions depending on whether a programmer-specified boolean condition evaluates to true or false. ![]()
0 Comments
Leave a Reply. |