![]() ![]() If you have any questions or suggestions, please feel free to leave a comment below. That’s all you need to do for checking if a directory of file exists in bash shell or not. You can use the negation again to check if directory doesn’t exist: #!/bin/bash ![]() #!/bin/bashįi Check if directory doesn’t exist in bash The only difference is that you’ll be using -d instead of -f. The code for checking directory is the same as the one you saw in the previous section. 3,437 8 40 67 Add a comment 4 Answers Sorted by: 11 If you want to run the script from everywhere you need to add it to your PATH. Now that you know how to deal with files, let’s move on to directories. What if it’s the other way round and you want to check if file does not exist in bash? You can use pretty much the same code as above by using the negation operator: #!/bin/bash You can also use the above code in single line like this: test -f /home/user/my_file & echo "My file exists" || echo "My file doesn't exist" Check if file doesn’t exist in bash script It’s pretty much the same thing only that you don’t use the square brackets in the if statement: #!/bin/bash You can also use test in bash to see if file exists or not. Or put the entire statement together like this: & echo "My file exists" || echo "My file doesn't exist" Check file exists in bash with test It’s up to you how you want to use the if statement.įor example, you can write it with two square brackets, keep ‘then’ in the same line as ‘if’ with the help of semicolon like this: #!/bin/bash If you can change the interface, then instead of sourcing your script, have your script print out a shell snippet to be passed to eval in the caller. #!/bin/bashīasically, what matters is the condition you use in the if command. The only reliable way to locate a sourced script is to use bash, ksh93 or zsh. Here’s how you can check with square brackets #!/bin/bashīut you won’t always get the file name before hand, will you? You can have it in a variable and if that’s the case, you can use it in this fashion. Let’s say you want to check if file /home/user/my_file exists or not. The idea here is to use the -f operator that returns true only when it is a regular file (not directory). In this tutorial, I’ll show you a couple of ways to check if file or directory exists in bash script or not. This helps avoiding possible errors for performing certain actions on a file that doesn’t exist. If you are working on a Bash script that interacts with files and directories, you might encounter a situation where you need to make sure that the file or directory exists. ![]()
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