In Linux, ls might be one of the most frequently used commands. It is used to list files in a specific directory. In most cases, we may just use ls -l to list the files under a directory. But have you explored other usages of this command. In this post, we will summarise some other common usages of ls commandAssuming we have below directory structure in our system, let's see them using tree command.List details of the filesIf we want to list the details of the files in /home/alvin/test_dir, we can funls -lR /home/alvin/test_dir/Output:[alvin@VM_0_16_centos test_dir]$ ls -lR...