In this video I go over the Linux Fedora 29 Mate spin install.
In UNIX and Linux everything is a File. Well almost.
The correct statement would be everything is a file descriptor or a process. The point to everything is a file is that common tools can be used. I/O access can be done using the same set of operations. In windows you have different reads for sockets, files and pipes with different. With Unix/Linux treating everything as a simple file descriptor you have one read system call. This removes the need for having multiple operations with specific uses doing the same thing.
As example of everything is a file we will take a look at a directory file.
I hope the high level overview in this video explained why to go deeper into this would get into kernel development and beyond what I do.
In this video I go over the most important command in Linux which is the ls command. Ls is how to list directory content.
First we look at the ls man page. then we go over some ls examples
Ls show hidden file (all)
Ls long listing
Ls human readable file sizes
Sorting by size with ls
Shoring by size in reverse
Sorting by modified time with ls
In this video I cover the rev or revers command in Linux. The rev command reverse lines characters. It comes with the util-linux package and can take input from a file or stranded out.
I think this command is little know because it doesn’t have many uses and there are other ways of doing it.
In this video I wanted to cover something fun so I chose the sl command in Linux and Unix systems. SL stands for Steam Locomotive and its a joke for typed ls commands.
One thing I didn’t share in the video is capital LS is a link to sl and not a alias. At least in mint Linux.
In this video we cover Linux strings and how to print printable characters in a binary file.
First we look at the strings man page and then we go over some examples
$ strings [file]