What are some examples of conditional statements in shell scripts?

What are some examples of conditional statements in shell scripts?

Conditional statements in shell scripts allow you to execute commands based on certain conditions. For example, you can use if, else, and elif to control the flow of your script.

Can you give me a simple example of an if statement?

Sure! Here's a basic example:

if [ -f "file.txt" ]; then
    echo "file.txt exists."
else
    echo "file.txt does not exist."
fi

What does the -f flag do in that example?

The -f flag checks if the specified file exists and is a regular file. If it does, the condition evaluates to true.

Are there other types of conditional checks I can use?

Yes, you can use other flags like -d to check for directories, -e for any type of file, and -z to check if a string is empty.