Linux [11] -- Recap Linux Basic Command

I.Intro

 生产实习期间，选的 Big Data，昨天刚搭完hadoop环境，今天想乘机把Linux命令行捡回来，做了一点小小的小练习巩固巩固~ ?

II.Get Started

• make three directory name by music, picture, video

	# 文件夹之间用空格隔开
	Psycho@SheepCore desktop $ mkdir music picture video
	

snapshot:

• fork 18 files under desktop

	# 文件夹之间用空格隔开
	Psycho@SheepCore desktop $ touch song1.mp3 song2.mp3 song3.mp3 /
	Psycho@SheepCore desktop $ touch song4.mp3 song5.mp3 song6.mp3
	Psycho@SheepCore desktop $ touch snap1.jpg snap2.jpg snap3.jpg snap4.jpg snap5.jpg snap6.jpg
	Psycho@SheepCore desktop $ touch film1.avi film2.avi film3.avi film4.avi film5.avi film6.avi
	

snapshot:

• move all these files into specific folder

	# using mv command to move files from a to b
	Psycho@SheepCore desktop $ mv ./snap1.jpg ./picture
	Psycho@SheepCore desktop $ mv ./snap2.jpg ./picture
	...
	...
	...
	

一个一个move太繁琐！！！

So, here is a tremendous way elevate your efficiency:

	# using mv command to move files with operator *
	Psycho@SheepCore desktop $ mv ./snap*.jpg ./picture
	Psycho@SheepCore desktop $ mv ./song*.mp3 ./music
	Psycho@SheepCore desktop $ mv ./film*.avi ./video
	# 使用通配符 * 可以批量处理文件，但必须文件名得长得差不多才行！
	

snapshot:

• create three directorys

	# using mkdir to make filefolder
	Psycho@SheepCore desktop $ mkdir friends family work
	Psycho@SheepCore desktop $ ls
	BigData_Hadoop		friends			video
	bd01_bd02_Linux基础	music			work
	family				picture			~$164586李久枫.docx	

• copy files to directorys

	# using cp(copy) command
	Psycho@SheepCore desktop $ cp ./music/song{1,2}.mp3 friends/
	Psycho@SheepCore desktop $ cp ./music/song{3,4}.mp3 family/
	Psycho@SheepCore desktop $ cp ./music/song{5,6}.mp3 work/
	Psycho@SheepCore desktop $ cp ./picture/snap{1,2}.jpg friends/
	Psycho@SheepCore desktop $ cp ./picture/snap{3,4}.jpg family/
	Psycho@SheepCore desktop $ cp ./picture/snap{5,6}.jpg work/
	Psycho@SheepCore desktop $ cp ./video/film{1,2}.avi friends/
	Psycho@SheepCore desktop $ cp ./video/film{3,4}.avi family/
	Psycho@SheepCore desktop $ cp ./video/film{5,6}.avi work/	
	

snapshot:

• remove files and directorys

	# using cp(copy) command
	Psycho@SheepCore desktop $ rm -drf ./family ./friends/
	

• remove files in directory but remain directory

	# remove all files in work dir and remain current dir
	Psycho@SheepCore desktop $ rm -rf ./work/*

snapshot:

• using rmdir to remove empty directory

	# using cp(copy) command
	Psycho@SheepCore desktop $ rmdir work
	Psycho@SheepCore desktop $ ls
	BigData_Hadoop		music			video
	bd01_bd02_Linux基础	picture			~$164586李久枫.docx
	

III. Summary

 学而时习之，方可为师也！?

• fork a directory: mkdir
• fork a file: touch
• move files to dir: mv
• copy files to another dir: cp ~/oldFile ~/newFolder
• remove files and its father directory: rm -rf dirname
• remove files but remain dir: rm -rf ~/folderName
• remove empty directory: rmdir

 Do what you want to do, be what you want to be!
 LOVE && PEACE. ?