Using “grep” in If Statement in Bash [4 Cases]
The grep command is a useful tool to search for a text pattern within files. Along with the if statement, …
if else statement
How to Use Regex in Bash If Condition? [4 Cases]
Regex or regular expression is a sequence of characters that specifies a search pattern. Matching with regex can be done …
Bash If-Else Condition in One-Line [2 Ways]
In the traditional approach of using if-else structures, you had to write a bunch of lines of code to execute …
Check If Array Contains an Element in Bash [6 Methods]
Bash arrays provide a powerful tool for storing multiple values in one variable. While dealing with arrays, determining whether a …
Remove Using ‘rm’ If Files Exist in Bash [6 Cases]
The ‘rm’ command is a powerful tool for deleting files, but when it comes to scenarios where the file’s existence …
How to Compare Strings in Bash With If Statement [6 Methods]
String comparison is the process of checking if a string is the same length as another string, if it’s longer …
How to Compare Numbers in Bash With If Statement [2 Methods]
Compare Numbers in Bash scripting is essential for a wide range of tasks, including arithmetic calculations and logical decisions. Therefore, it …
How to Check If a String is Empty or Not in Bash [5 Methods]
To check whether a string is empty, compare the string with empty string (” “): if [ "$string" == " …
How to Check If An Input Argument Exists in Bash [4 Methods]
When writing a bash script, it is a common task to check the input argument in bash to handle the …
Check If a Variable Exists in Bash Using If Statement
In Bash, the “if else” statement is used to control the flow of execution of the bash script statements. Within …
Check If a String Contains Substring, Number & Letter in Bash
Bash refers to the Bourne-again-shell, a popular script used in Unix-like operating systems such as Ubuntu. In bash, a string …
What is “$?” in the Bash if Statement? [8 Examples]
The $? is a special variable that holds the exit status of the last executed command in Bash. After executing …
