Ranvir Singh

# Making shell your friend | Commands that I use daily

March 23, 2020

In this post, I will be sharing all types of bash commands that I use during my daily life.

To start with, I am a big-time shell user. I do everything from the shell. It may be as simple as pushing the code, It may be running a project, It may be changing a few files. Everything I do involves shell to some extent.

Git commands were the most common commands in my shell history. There are less than 10 git commands that I have used to date.

.css-1baulvz{display:inline-block;}git statusgit diff <file_name>git add <file_name>git branch <branch_name>git checkout <branch_name>git checkout <file_name>git commit -m "<commit_message>"git fetch <branch_name>git cherry-pick <commit_hash>git pull origin <branch_name>git push origin <branch_name>git reset

These are the few git commands along with a few more which you will use. There are a lot of tutorials that will tell you the uses of these commands. If you want to know about anything specific, let me know in the comments below.

## Moving inside the directory structure

Another pretty common command that I was using to switch between the different directories is cd.

cd /Users/ranvir/Documents/...
cd ~/Documents/...

Both of these commands will produce the same result.

cd ..

This command will take you one directory back.

cd -

This command is one of my favourites. This will take you to directory where you were before.

For example, if you were in ~/Documents/some_dir/ and then you ran the command

cd /var/www/html/

and after completing your stuff, you run cd -, it will take you back to ~/Documents/some_dir/.

## ls

ls/Listing command will help you to list everything in a directory. There are a lot of versions, but primarily we use the following.

lsls -als -la

history

Use this command to see your history.

## Finding old commands

Use this technique to find old commands.

Use the combination of control + r and type the words that you want to appear.

For example: control + r restart. This will show the most recently used command with a restart in it. This command is pretty helpful in many of the cases.

## Run the last command with sudo.

sudo !!

This will run the last executed command as a sudo user.

## Remove the clutter

To my surprise, this was one more which I was frequently using. Not sure if you guys are using it. Let me know in the comments below.

clear

## Exiting the terminal

This command was being used frequently to quit the shell as well.

exit

## vim and cat

These commands are used to edit or check the content of the files regularly.

vim ~/.ssh/config

## See and analyze your running processes

I prefer to use this command regularly to check which processes are taking more memory or CPU usage than other apps and maybe killing them.

htop

## Finding stuff around

This command is used to find content in a directory or a group of files. I mostly use the following version.

grep -rni "search_material" *

where r stands for recursive and i stands for removing case check.

## ssh

I have a lot of boxes (servers) running for various things that I have to access during the work. I have simply made a config, using which I can directly call the aliases to connect to a specific server. For example.

ssh ranvir_server

Let me know if you want to know how is this config written.

## Creating a directory

This command is used to create a directory.

mkdir abc

## Creating a file

This command is used to create new files.

touch abc.js

## Docker

I use a lot of docker related things to use databases. I think discussing docker will again a bigger one. I don't think we would be able to do that in this part.

Do let me know if you want to know more about the docker. I will come up with a new article.