To count number of folders/directories/files in folder/directory is possible using wc command with a parameter -l. But we have to be sure, that we are counting only folders, so let's filter only folder using ls command, and then count then.
My example:
$ pwd
/home/dima/
Then let's take a look, which files and folders we have:
Linux command line is very powerful tool even for string and character operations without installing any third-party applications.
To count number of characters in some file, containing text, you can use wc command with -m parameter using following scheme:
$ wc -m <file_name>
Examples:
$ wc -m nata-ubuntu-settings
21 nata-ubuntu-settings
$ wc -m it-slang-v-rustine
1019 it-slang-v-rustine
$ wc -m rongta-files-installation
389 rongta-files-installation
To install npm build manager on LinuxLiteOS you have first download an archive (you will get nodejs and npm) from https://www.npmjs.com/get-npm
After downloading unpack it:
$ tar -xvf node-v12.16.2-linux-x64.tar.xz -C /opt
Then let's take a look, what is inside:
$ ls /opt/node-v12.16.2-linux-x64/bin
Before we remove a symbolic link (also called symlink) in Mabox Linux, we have to ensure, that link really exists. In Linux you (normally) don't see file extension, so, first, check, what contains symlink:
I have (I hope, we will check it) I have a symlink "/usr/bin/node", because I write
$ node --version
and receive this output:
Sometimes happens, that you've installed software into .. some 'strange' directory, for example into you /home folder or /home/$USER/Download folder. And it means that you have to go into that folder and run a command. It's not comfortable. Linux has solution! You can use command-line utility ls to create a link between two files.
Rule is very simple:
$ ls -s <path_to_source_file> <path_to_link>
Let's look on real example in my system:
Just imagine you have installed a program and want to launch it in terminal with just the name of the program.
For example, I have downloaded a PaleMoon browser and not it's stored in:
$ /home/edustorage/Downloads/palemoon/palemoon
To launch this program, I have to go to :
$ cd /home/edustorage/Downloads/palemoon
and run a command:
$ sudo ./palemoon