https://github.com/you-dont-need/You-Dont-Need-GUI

You Don't Need GUI - 图1

Graphical user interfaces are super friendly to computer users. They were introduced in reaction to the perceived steep learning curve of command-line interfaces (CLIs).

You Don't Need GUI - 图2

However, they often require more resources, are less powerful and hard to automate via scripting.

As a computer expert, we want to be more efficient and do our jobs better. We know that command words may not be easily discoverable or mnemonic, so we try to list some common tasks that you might be tempted to do in GUI.

Quick links

  1. copy a file
  2. duplicate a file
  3. copy a directory
  4. duplicate a directory
  5. move a file
  6. rename a file
  7. move a directory
  8. rename a directory
  9. merge directories
  10. create a new file
  11. create a new directory
  12. show file/directory size
  13. show file/directory info
  14. open a file with the default program
  15. zip a directory
  16. unzip a directory
  17. peek files in a zip file
  18. remove a file
  19. remove a directory
  20. list directory contents
  21. tree view a directory and its subdirectories
  22. find a stale file
  23. show a calendar
  24. find a future date
  25. use a calculator
  26. force quit a program
  27. check server response
  28. view content of a file
  29. search for a text
  30. view an image
  31. show disk size
  32. check performance of your computer
  33. Quick tips
  34. Hotkeys
  35. I can’t remember these cryptic commands

copy a file

STOP DRAG AND DROPPING A FILE, OR CMD/CTRL + C, CMD/CTRL + V A FILE You Don't Need GUI - 图3

Copy readme.txt to the documents directory

  1. $ cp readme.txt documents/

duplicate a file

STOP RIGHT CLICKING AND DUPLICATE A FILE You Don't Need GUI - 图4

$ cp readme.txt readme.bak.txt

More advanced:

$ cp readme{,.bak}.txt
# Note: learn how the {} works with touch foo{1,2,3}.txt and see what happens.

copy a directory

STOP DRAG AND DROPPING A DIRECTORY, OR CMD/CTRL + C, CMD/CTRL + V A DIRECTORY You Don't Need GUI - 图5

Copy myMusic directory to the myMedia directory

$ cp -a myMusic myMedia/
# or
$ cp -a myMusic/ myMedia/myMusic/

duplicate a directory

STOP RIGHT CLICKING AND DUPLICATE A DIRECTORY You Don't Need GUI - 图6

$ cp -a myMusic/ myMedia/
# or if `myMedia` folder doesn't exist
$ cp -a myMusic myMedia/

move a file

STOP DRAG AND DROPPING A FILE, OR CMD/CTRL + X, CMD/CTRL + V A FILE You Don't Need GUI - 图7

$ mv readme.txt documents/

Always use a trailing slash when moving files, for this reason.

rename a file

STOP RIGHT CLICKING AND RENAME A FILE You Don't Need GUI - 图8

$ mv readme.txt README.md

move a directory

STOP DRAG AND DROPPING A DIRECTORY, OR CMD/CTRL + X, CMD/CTRL + V A DIRECTORY You Don't Need GUI - 图9

$ mv myMedia myMusic/
# or
$ mv myMedia/ myMusic/myMedia

rename a directory

STOP RIGHT CLICKING AND RENAME A DIRECTORY You Don't Need GUI - 图10

$ mv myMedia/ myMusic/

merge directories

STOP DRAG AND DROPPING TO MERGE DIRECTORIES You Don't Need GUI - 图11

$ rsync -a /images/ /images2/    # note: may over-write files with the same name, so be careful!

create a new file

STOP RIGHT CLICKING AND CREATE A NEW FILE You Don't Need GUI - 图12

$ touch 'new file'    # updates the file's access and modification timestamp if it already exists
# or
$ > 'new file'        # note: erases the content if it already exists

create a new directory

STOP RIGHT CLICKING AND CREATE A NEW DIRECTORY You Don't Need GUI - 图13

$ mkdir 'untitled folder'
# or
$ mkdir -p 'path/may/not/exist/untitled\ folder'

show file/directory size

STOP RIGHT CLICKING AND SHOW FILE/directory INFO You Don't Need GUI - 图14

$ du -sh node_modules/

show file/directory info

STOP RIGHT CLICKING AND SHOW FILE/DIRECTORY INFO You Don't Need GUI - 图15

$ stat -x readme.md   # on macOS
$ stat readme.md      # on Linux

open a file with the default program

STOP DOUBLE CLICKING ON A FILE You Don't Need GUI - 图16

$ xdg-open file   # on Linux
$ open file       # on MacOS

zip a directory

STOP RIGHT CLICKING AND COMPRESS DIRECTORY You Don't Need GUI - 图17

$ zip -r archive_name.zip folder_to_compress

unzip a directory

STOP RIGHT CLICKING AND UNCOMPRESS DIRECTORY You Don't Need GUI - 图18

$ unzip archive_name.zip

peek files in a zip file

STOP USING WinRAR You Don't Need GUI - 图19

$ zipinfo archive_name.zip
# or
$ unzip -l archive_name.zip

remove a file

STOP RIGHT CLICKING AND DELETE A FILE PERMANENTLY You Don't Need GUI - 图20

$ rm my_useless_file

IMPORTANT: The rm command deletes my_useless_file permanently, which is equivalent to move my_useless_file to Recycle Bin and hit Empty Recycle Bin.

remove a directory

STOP RIGHT CLICKING AND DELETE A DIRECTORY PERMANENTLY You Don't Need GUI - 图21

$ rm -r my_useless_folder

list directory contents

STOP OPENING YOUR FINDER OR FILE EXPLORER You Don't Need GUI - 图22

$ ls my_folder        # Simple
$ ls -la my_folder    # -l: show in list format. -a: show all files, including hidden. -la combines those options.
$ ls -alrth my_folder # -r: reverse output. -t: sort by time (modified). -h: output human-readable sizes.

tree view a directory and its subdirectories

STOP OPENING YOUR FINDER OR FILE EXPLORER You Don't Need GUI - 图23

$ tree                                                        # on Linux
$ find . -print | sed -e 's;[^/]*/;|____;g;s;____|; |;g'      # on MacOS
# Note: install homebrew (https://brew.sh) to be able to use (some) Linux utilities such as tree.
# brew install tree

find a stale file

STOP USING YOUR FILE EXPLORER TO FIND A FILE You Don't Need GUI - 图24

Find all files modified more than 5 days ago

$ find my_folder -mtime +5

show a calendar

STOP LOOKING UP WHAT THIS MONTH LOOKS LIKE BY CALENDAR WIDGETS You Don't Need GUI - 图25

Display a text calendar

$ cal

Display selected month and year calendar

$ cal 11 2018

find a future date

STOP USING WEBAPPS TO CALCULATE FUTURE DATES You Don't Need GUI - 图26

What is todays date?

$ date +%m/%d/%Y

What about a week from now?

$ date -d "+7 days"                                           # on Linux
$ date -j -v+7d                                               # on MacOS

use a calculator

STOP USING CALCULATOR WIDGET You Don't Need GUI - 图27

$ bc

force quit a program

STOP CTRL + ALT + DELETE and choose the program to kill You Don't Need GUI - 图28

$ killall program_name

check server response

STOP OPENING A BROWSER You Don't Need GUI - 图29

curl -i umair.surge.sh
# curl's -i (--include) option includes HTTP response headers in its output.

view content of a file

STOP DOUBLE CLICKING A FILE You Don't Need GUI - 图30

$ cat apps/settings.py
# if the file is too big to fit on one page, you can use a 'pager' (less) which shows you one page at a time.
$ less apps/settings.py

search for a text

STOP CMD/CTRL + F IN A DIRECTORY You Don't Need GUI - 图31

$ grep -i "Query" file.txt

You Don't Need GUI - 图32

view an image

STOP USING PREVIEW You Don't Need GUI - 图33

$ imgcat image.png
# Note: requires iTerm2 terminal.

show disk size

STOP RIGHT CLICKING DISK ICON OR OPENING DISK UTILITY You Don't Need GUI - 图34

$ df -h

check performance of your computer

STOP OPENING YOUR ACTIVITY MONITOR OR TASK MANAGER You Don't Need GUI - 图35

$ top

Quick tips

You Don't Need GUI - 图36

Hotkeys

Ctrl + A  Go to the beginning of the line you are currently typing on
Ctrl + E  Go to the end of the line you are currently typing on
Ctrl + L  Clears the Screen, similar to the clear command
Ctrl + U  Clears the line before the cursor position. If you are at the end of the line, clears the entire line.
Ctrl + H  Same as backspace
Ctrl + R  Lets you search through previously used commands
Ctrl + C  Kill whatever you are running
Ctrl + D  Exit the current shell
Ctrl + Z  Puts whatever you are running into a suspended background process. fg restores it.
Ctrl + W  Delete the word before the cursor
Ctrl + K  Clear the line after the cursor
Ctrl + T  Swap the last two characters before the cursor
Esc + T   Swap the last two words before the cursor
Alt + F   Move cursor forward one word on the current line
Alt + B   Move cursor backward one word on the current line
Tab       Auto-complete files and directory names

I can’t remember these cryptic commands

You can always google or man the commands you are not familiar with. Or, checkout tldr, a collection of simplified and community-driven man pages.