Find command: How to find and delete 0 bytes files in Linux

In Linux, "find" command is a powerful command that we can use not only to find files. I've used it for different requirements, so thought of posting some of the convenient usages of find commands in a series of posts.

For some application issue, I've got one of my directories in Ubuntu system swarmed with empty files with 0 bytes. Some of the files got data in them but some of them were empty. I just wanted to delete the empty files and it wasn't possible to identify them by file names or dates.

So find command comes to rescue.

find . -size 0 -type f

If I needed to isolate the files by file extension, we can use something like this.

find . -size 0 -type f -name "*.tar"

You can get the file count by piping it to wc command.

find . -size 0 -type f -name "*.tar" | wc -l

The awesome thing about the find command is you can use it for deleting files just by adding the -delete flag to the command.

find . -size 0 -type f -name "*.tar" -delete

Comments

VLC skins

It's been a while from my first blog post, so today I thought to make a blog post about skins in VLC player. I think you all are familiar with VLC player if not, here's the link for the website www.videolan.org/vlc/index.htm l In brief, VLC player is a free and opensource player that can play almost all the types of media formats. Even though it is a such a nice player, it looks kind of old and rusty, like the windows classic look. But you can make it prettier by just adding some new skins to it. You can download skins for the player from here http://www.videolan.org/vlc/skins.php Then place the downloaded skin file (.vlt file) in the " skin " folder in the installation directory. eg:- in windows: C:\Program Files\VideoLAN\VLC\skins or in linux systems: ~/.local/share/vlc/skins Then, open the VLC player and go to the preferences. ...

How to set terminal title in Ubuntu 18.04 LTS

In older Ubuntu versions, you could have just right-clicked on the Ubuntu Terminal window's title bar and set any title you would like. But unfortunately after Ubuntu 18.04 LTS this feature is gone. I used to love this feature because I'm multiple tabs in the single terminal window kind of a guy. I usually like to work in multiple named terminal tabs like below. By default, in newer Ubuntu version, it is showing just the current directory. Let's see how we can do this. Ubuntu prompt In ubuntu's Bash, there's an environment variable $PS1 which is responsible for the details that the command line prompts. You'll be able to echo this and see what's inside it. If I echo it it will print something like this. echo $PS1 \[\e]0;\u@\h: \w\a\]${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ If you really want to understand what this means, you can refer this page . Updating the termina...

Java, how to create a list with a single element

I wanted to create a Java List with a single element. Yet, I wanted to add more elements later. So, I was looking for a couple of ways to do this. So far there are multiple elegant ways to create a list with a single element with a one-liner. Not so much for a modifiable list though. Here's what I gathered so far. Followings are a few ways of creating a list with strictly a single entry. Can't add more elements. 1. Collections.singletonList() This returns an immutable list that cannot be modified or add more elements. // An immutable list containing only the specified object. List<String> oneEntryList = Collections. singletonList ( "one" ) ; oneEntryList.add( "two" ) ; // throws UnsupportedOperationException 2. Arrays.asList() This returns a fixed-size list consisting of the number of elements provided as arguments. The number of elements provided would be an array hence the size is fixed to the length of the array. // Returns a fixed-size list List...

TJ is Blogging!

Search This Blog