Linux Basic command, archive, compress, view file content __linux

Linux

/--root directory (top-level directory)

ls---Display the contents of the file

Man ls--Help manual, function, syntax, parameter exit Q

bin--(green) Normal user's command

root--Root User's host directory

Medi--、 mnt--mount point

cp--Replication directory: cp–r/etc dir_1

*.tar.gz--Archive Compression Red

cd--Open File

TAR–ZXVF file name--Extract Files

ls--help--help manual is about the same as man LS

su--Change User example: An administrator changed to John Su Zhangsan

boot--linux kernel files, you can view the best not to edit

dev--External Equipment

etc--configuration file

home--Default host directory for all normal users

usr--Command (green)

sbin--system the command used by the binary system administrator

CP--HELP--CP Help manual

tab--the function on the keyboard: The command is padded, the filename is filled

touch--file name already exists update time

no create empty file exists

mkdir--Create an empty directory mkdir directory name

mv--transfer file or rename

 

location in file permissions representing file types

d--Directory Blue

---Files green, red, black

l--Connection files (shortcuts are similar to Windows shortcuts) light blue

r--Read Only w--write only

 

 

Archive

-c--create Create an archive file

-t--list Display archive content

-X---Recovery (release) archive

-c--Specify external media when saving archive files

-f--Specify the name of the archive file

-v--shows the details during execution

 

1) Create archive (backup) is not compressed

TAR–CVF User.tar passwd Shadow

2 View archive content (multiple archive coexistence)

TAR-TVF User.tar

3 Release the archive (need to restore the system)

TAR-XTF User.tar

 

 

Compress

Zip bulk compression. zip

Create Compressed Package zip *

Extract Unzip * (or specify extract file name)

 

gzip single compression. GZ

Create compressed file gzip file name

extract Gzip–d Compressed file name

extract Gunzip Compressed file name

 

tar-z Common Files

Example: TAR-CZVF user1.tar.gz passwd Shadow decompression

TAR-ZXVF user1.tar.gz Release

 

 

View File Contents

ls--Display file (folder) attribute aspect information

cat--Browse file contents cat file name > orientation >> redirect

more--Paging display more file name

carriage return indicates the next line

a space indicates the next page is displayed

disadvantage: Can only move down, can not be rolled back

less--with more similar, can move up less file_1

> Directional à save file name to file

ls/sbin > File_1

ls/sbin > File_1

Cat File_1

How many times to redirect only the last time, not append, overwrite

For example: File_1 has 20 words WC file_1 Display 20

 

>> redirect--ls/sbin >> file_2 ls/sbin >> file_2

Append, double, do not overwrite

For example: File_2 has 20 words WC file_2 Display 40

 

wc--Statistics

-w-c-L

For example: WC file_1 WC file_2

 

head--Display the first few lines

head-2 passwd display passwd first two lines

tailà display after a few lines

tail-3 passwd display passwd after 3 lines

 

Example: Show line Tenth

head-10 passwd | TAIL-1 passwd