Dec 22, 2023 · In this article, we will discuss about if statement in bash scripting. # code to be executed if the condition is true. Explanation: if [ condition ]; then: This line starts the if statement, where condition is the expression that is evaluated. If the condition is true, the code inside the then block is executed.

Apr 15, 2025 · Learn how to use if, else, and elif statements in shell scripting. This guide provides syntax explanations, practical examples, and common use cases for cond…

Feb 27, 2020 · Conditional Statements: There are total 5 conditional statements which can be used in bash programming. if..then..else..if..then..fi..fi.. (Nested if) Their description with syntax is as follows: This block will process if specified condition is true. statement. If specified condition is not true in if part then else part will be execute.

The most fundamental construct in any decision-making structure is an if condition. The general syntax of a basic if statement is as follows: if [ condition ]; then your code fi. The if statement is closed with a fi (reverse of if). Pay attention to white space! There must be a space between the opening and closing brackets and the condition ...

May 2, 2023 · Use the Linux Bash if statement to build conditional expressions with an if then fi structure. Add elif keywords for additional conditional expressions, or the else keyword to …

Jan 7, 2014 · echo "Test IF"; Correct your syntax: spaces must be used around [ and ], parameter expansions must be quoted, and -gt is appropriate for numeric comparisons inside of [ ]. > in sh is used as redirection operator; if you want to use it in arithmetical comparison, you must use the bash-only syntax. echo "This is a numeric comparison if example"

Dec 15, 2020 · In this tutorial you will learn: Bash if Statements: if, elif, else, then, fi. Matched! In this statement, we are comparing one to one. Note that -eq mean equal to. To do the reverse, one can use -ne which means not equal to, as shown in the following example: Matched!

May 9, 2024 · Some of the most frequently used options in Bash scripts are -s, -n, -f, -e, -d, -v, -z, -r, -w and -x. Here’s an overview of the most useful options for the ‘if’ statement in Bash: 1. Bash “If -s”

Sep 30, 2010 · For example: if [ -n "${check_inodes}" ] && [ "$(stat -f %i "/foo/bar")" = "$(stat -f %i "/foo/baz")" ]. Doing it this way, if check_inodes is empty, you avoid two calls to stat, whereas a larger, complex test condition must process all arguments before executing (which can also lead to bugs if you forget about that behaviour).

Bash Syntax Bash Script Bash Variables Bash Data Types Bash Operators Bash If...Else Bash Loops Bash Functions Bash Arrays Bash Schedule (cron) ... The condition is enclosed in square brackets [ ] and the statement ends with fi, which is if spelled backward, marking the end of the if block. Example: If Statement