Unit 3: Browsing the Filesystem
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01. Linux File Hierarchy Concepts
* Files and directories are organized into a single-rooted inverted tree structure
* Names are case-sensitive
02. Some Important Directories
* /root,/home/<username>
* media and mnt (Foreign filesystem mountpoints)
* /etc (system config files)
* /boot (kernel and bootloader)
* /dev (device)
* /usr (programs)
03. Current Working Directory
* # pwd
04. File and Directory Names
* do not include "/"
* 直接访问home下的jpg目录
# cd ~/jpg
05. Copy
* copy a,b to tmp
# cp a b tmp
* save source timestamp
# cp -p a tmp
* copy a directory
# cp -r dd tmp
06. Moving and rename
# mv src dest (src can include two files)
# mv 2006 /root/2007
07. Removing and Creating
# rm -i [-r(recursive)] [-f(force)]
#touch (create a empty file or update timestamp)
08. Determining file content type
# file a.txt
# cat a.txt
# cat -A a.txt (显示空行为$)
# cat -b a.txt(显示行号)
09. less command
* enter page view
# less a.txt
- Unit 3: Browsing the Filesystem
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