Shulou(Shulou.com)06/02 Report--

I. Catalog structure

/ boot: system startup-related files, such as kernel, initrd, and grub (bootloader)

/ dev: device file

Block devices: random access, block

Character devices: linear access, per character

Device number: primary equipment number (major) and secondary device number (minor)

/ dev/null: software equipment, bit bucket, data black hole

/ etc: configuration file

/ home: home directory

/ root:root user home directory

/ lib: library file

/ lib/modules: kernel module file

Static library: .a

Dynamic libraries: .dll, .so (shared object)

/ media & / mnt: Mount point directory

/ misc: miscellaneous

/ opt: optional directory for early installation of third-party programs

/ proc: pseudo file system, kernel mapping file

/ sbin: executable commands, administrative commands

/ bin: executable file, user name command

/ selinux

/ srv

/ sys: pseudo file system, attribute mapping file related to hardware devices

/ tmp: temporary file

/ usr:universal shared readonly, read-only file

/ usr/bin

/ usr/sbin

/ usr/lib

/ usr/local

/ usr/local/bin

/ usr/local/sbin

/ usr/local/lib

/ var: changeable file

/ var/tmp: temporary file directory

Second, the file catalogue commonly used command collation

Directory management

Ls: view the contents of the directory

Cd: switching directories

Pwd: view the current directory path

Tree: tree display folder

Mkdir: create an empty folder

Rmdir: delete empty folder

Document management

Touch: change the time of a file or directory

Stat: displaying metadata for files

File: file typ

Rm: file deletion

File copy

Cp

Install

Text editor

Nano: file editor

Vi: file editor

Vim: file editor

ASCII file:

T:0000 1001

File lookup

Locate: non-real-time, based on database search

Find: real-time

Text processing

View text

Cat | tac: full text output

More: flip backward

Less: turn forward

Head: just look at the first n lines

Tail: only look at the last n lines

Text processing

Cut: text cut off

Join

Sed

Awk

Grep: regular expression

Sort: text sorting

Uniq: remove adjacent and duplicate lines

Tr: delete, replace

Text statistics

Wc: article statistics

Symbol

Tee: save files and export at the same time

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