WebIn this guide, we will test these string operators using the if statement in Centos 8. In this guide you will learn about the following testing strings: If-n when String is Null. If-n when String is not Null If-z when Sting is Null If-z when String is not Null If-z while taking String User input Use of if -n operator when String is Null Web27 feb. 2024 · To use multiple conditions in one if-else block, then elif keyword is used in shell. If expression1 is true then it executes statement 1 and 2, ... Shell Scripting - Difference between Korn Shell and Bash shell. 5. Shell Script to Demonstrate the Use of Shell Function Library. 6.

How to if/else statement in shell script - Stack Overflow

Web15 dec. 2024 · Bash if Statements: if, elif, else, then, fi Software requirements and conventions used Example 1: Simple if statement at the command line $ if [ 1 -eq 1 ]; … WebAt times you need to specify different courses of action to be taken in a shell script, depending on the success or failure of a command. The ifconstruction allows you to specify such conditions. The most compact syntax of the ifcommand is: if TEST-COMMANDS; then CONSEQUENT-COMMANDS; fi mentimeter state of incorporation

Conditional Statements Shell Script - GeeksforGeeks

WebModern shells such as Bash and Zsh have inherited this construct from Ksh, but it is not part of the POSIX specification. If you're in an environment where you have to be strictly … Web28 feb. 2024 · An if statement in a Bash script is the most basic way to use a conditional statement. In simple terms, these conditional statements define “if a condition is true, then do that, otherwise do this instead.” The if statements become more complex when you nest them together, or in other words put one if statement inside of another if statement. WebThe accepted answer is good but since you're using bash I'll add the bash solution: if [ [ "$fname" == "a.txt" "$fname" == "c.txt" ]]; then This is documented in the bash … mentimeter what is voice