Convenient Linux keyboard operation that I want to teach myself when I was in school

About this article

When creating a portfolio, I think that there are many people who are ** only learning frameworks and not so much studying Linux **.

However, ** Linux is closely involved in development. ** ** When I was just learning programming without knowing that, I was silently creating a portfolio without knowing the efficiency of Linux and the "L" of Linux. This is an article ** that describes convenient Linux keyboard operations to improve development efficiency, for yourself and those who are planning to develop from now on when you attended such a past school.

environment

・ Mac ・ CentOS ・ Bash

Move the cursor without using the cursor keys

If you should type Linux but mistakenly type Linx, you want to move the cursor using ← → (cursor key), right? However, the ** cursor key is located in the lower right corner, and it is far from the home position, so the cursor cannot be moved smoothly. ** **

$ echo Linx

In such a case, move the cursor with ctrl + f or b.

command	Description
`ctrl` + `f`	forward [cursor forward (to the right)]
`ctrl` + `b`	back [Cursor back (to the left)]

Move the cursor to the beginning / end

It's annoying to move the cursor back character by character to the very end or the beginning of such a long command like an idiot! !! !! !! Here are some useful commands! !! !!

$ git log --graph --format=format:'%C(bold blue)%h%C(reset) - %C(bold green)(%ar)%C(reset) %C(white)%s%C(reset) %C(bold white)— %an%C(reset)%C(bold green)%d%C(reset)' --abbrev-commit --date=relative --all

command	Description
`ctrl` + `a`	Move the cursor first
`ctrl` + `e`	Move the cursor to the end

Move the cursor word by word

Sometimes you want to move the cursor word by word! !! !!

command	Description
`option` + `→`	Move to the right
`option` + `←`	Move to the left

Delete one character you typed

It's okay to delete the characters you typed with backspace, but using this key will cause a large deviation from your home position. So at that time ...

command	Description
`ctrl` + `h`	Delete the character after the cursor position
`ctrl` + `d`	Delete the character at the cursor position

Delete the entered characters word by word

Delete word by word, not by character

command	Description
`ctrl` + `w`	Delete word by word

Cut (total cut) and yank (paste)

command	Description
`ctrl` + `k`	Cut from the cursor position to the end of the line (cut)
`ctrl` + `u`	Cut from the cursor position to the beginning of the line (cut)
`ctrl` + `y`	Paste the last cut out (Yank)

Command history

Can be used when you want to use a command entered in the past again

command	Description
↑ key	To the previous command history
↓ key	To the next command history (when looking at the command history from the past)
`ctrl` + `r`	Search history

Example of `ctrl` + `r`

When searching for the same command used in the past ① Press ctrl + r (2) Enter a part of the command name you want to use (ʻecho in this case) ③ If found, execute the command with ʻEnter

(reverse-i-search)`': 

↓

(reverse-i-search)`echo': echo hello world

Complementary function

When you type the command ʻecho`, it's annoying to enter it to the end, right? In such a case, press the Tab key to complete the remaining characters.

$ec → Press the Tab key

$echo → Automatically complements the remaining "ho"

Finally

It's difficult to remember all the operations suddenly, so if you think that you can do something ** "Oh? This operation is really annoying ..." **, I think you can usually solve it. Please check this article or check it out on your own to improve the efficiency of development.