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What is the use of IF THEN ELSE statement?
The if-then-else statement provides a secondary path of execution when an “if” clause evaluates to false .
How if/then else is executed?
The IF statement evaluates the given conditional expression. If the result is true (i.e. nonzero), then the statements following the tag are executed. If the result is false, those statements are skipped and control falls to the next statement after the closing tag.
Is if/then else a loop?
The if-else conditional will go between the brackets of the while loop, in the same place we put it into the for loop earlier.
What does IF_THEN_ELSE mean?
If-then-else meaning A high-level programming language statement that compares two or more sets of data and tests the results. If the results are true, the THEN instructions are taken; if not, the ELSE instructions are taken. The following is a BASIC example: 10 if answer = “y” then print “Yes” 20 else print “No”In many languages, THEN is implied.
What is a shell script or shell scripting?
A shell script is a computer program designed to be run by the Unix shell , a command-line interpreter. The various dialects of shell scripts are considered to be scripting languages. Typical operations performed by shell scripts include file manipulation, program execution, and printing text.
What are shell scripts in Unix?
The Bourne Shell (sh): This was one of the first shell programs that came with Unix and is also the most widely used one.
How do I create a script in Bash?
To create a bash script, enter the following code: #!/bin/bash. #on displays the actual folder name. echo “the folder is ‘pwd'”. #then the rest of the files. echo “The folder which contains files are ‘ls'”. Save this file by pressing CTRL + O with Nano. Give it the name of your command.