Exa – A Modern And Colorful Replacement For LS Command Written In Rust
ls is one of the very basic & essential Linux command for administrator that can be used in most of the actions (in other hands, Linux administrator can’t live without ls command). Exa is a small, fast, portable, modern and colorful replacement for ls command which was written in rust language.
One of the special feature in exa is colors, by default it uses colors for output that will distinguish individual files, folders and fields. It uses varies colors for file owner, group, inode, links, permissions, blocks, size, date modified information etc., Overall this will help us to identify file permission and other attributes easily.
exa’s options are similar, but not exactly the same, as ls. It also has extra features not present in the original ls, such as viewing the Git status for a directory, or recursing into directories with a tree view.
What’s Rust : Rust is a systems programming language that runs blazingly fast, prevents segfaults, and guarantees thread safety.
Install prerequisites for Exa
Make sure following prerequisites should be installed on your system in order to run exa without any error. Run the following command and follow the instruction to install Rust.
$ curl https://sh.rustup.rs -sSf | sh
$ sudo apt install libgit2-24 libgit2-dev cmake git libhttp-parser-dev
$ sudo apt install libgit2-24 libgit2-dev cmake git libhttp-parser2.1
Install required development tools & libraries on RHEL/CentOS systems using YUM command
$ sudo yum install libgit2 cmake git http-parser
Install required development tools & libraries on Fedora systems using dnf command
$ sudo dnf install libgit2 cmake http-parser-devel
How to Install Exa using source code
Install required above development tools and build the latest development version from source. Clone latest version from github repository.
$ git clone https://github.com/ogham/exa.git && cd exa
make install in the new directory to compile and install exa into /usr/local/bin.
$ make install
How to Install Exa using binary method
The easiest way to install exa, is to download a binary file and place it under
/usr/local/bin. Make sure you should have installed http-parser & rust on your system.
$ wget https://the.exa.website/releases/exa-linux-x86_64-0.7.0.zip $ unzip exa-linux-x86_64-0.7.0.zip $ sudo mv exa-linux-x86_64 /usr/local/bin/exa
$ yaourt -S exa-git or $ packer -S exa-git
How to Use Exa in Linux
Let’s see few examples to understand exa. Simply type the exa command to get output.
To get long listing with exa command.
$ exa -l
Display the output like as table with exa command.
$ exa -bghHliS
To know more about exa command navigate to man page.
$ exa --help
If you feel difficult to use exa, simply add following alias on your
$ echo "alias ls=exa" >> ~/.bashrc $ source ~/.bashrc
Now you can access exa command features within ls command. See the following example.
$ ls $ ls -l $ ls -bghHliS