filesystems - Read For Learn

ZFS vs XFS

I’ve found XFS more well suited to extremely large filesystems with possibly many large files. I’ve had a functioning 3.6TB XFS filesystem for over 2 years now with no problems. Definately works better than ext3, etc at that size (especially when dealing with many large files and lots of I/O). What you get with ZFS … Read more

FreeBSD: Directory called ^C (really!) – how to remove?

^V (ctrl+v) works as a kind of escape sequence for the next key-press, inserting the associated value instead of taking whatever action that would normally be associated. Making use of this, ^V^C (ctrl+v, ctrl+c) ought to work for entering your difficult filename in the terminal.

What’s the best way to check if a file exists in C?

Look up the access() function, found in unistd.h. You can replace your function with You can also use R_OK, W_OK, and X_OK in place of F_OK to check for read permission, write permission, and execute permission (respectively) rather than existence, and you can OR any of them together (i.e. check for both read and write permission using R_OK|W_OK) Update: Note that on Windows, you can’t use W_OK to reliably … Read more

How to create a directory using Ansible

You want the file module. To create a directory, you need to specify the option state=directory : You can see other options at https://docs.ansible.com/ansible/latest/collections/ansible/builtin/file_module.html