Common LInux learning commands ls and linux Common commands ls

Common LInux learning commands ls and linux Common commands ls

Command Format and directory Processing Command ls

 

Command Format:Command [-Option] [parameter]

 

For example:Ls-la/etc

 

Note:

 

1) Some commands do not follow this format

 

2) when there are multiple options, you can write them together

 

3) Simplified options and complete options

 

-A equals to -- all

 

PS: in Linux, "." indicates a hidden file.

 

Directory processing command: ls
Command Name:	Ls
Command:	List
Command path:	/Bin/ls
Execution permission:	All users
Function Description:	Show directory files
Syntax:	Ls option [-ald] [file or directory]
	-A: displays all files, including hidden files.
	-L detailed information display
	-D. view directory properties.

# Ls-View files in the current directory (including hidden files)

# Ls-lDisplays detailed information about a file.

 

1 root 1208 December 3 06:22 anaconda-ks.cfg

 

1 root 24772 December 3 06:22 install. log

 

1 root 7690 December 3 06:21 install. log. syslog

 

Root owner root group 7690 File Size

 

The followingLs-lhIs to convert the file size byte display into Windows

 

[Root @ localhost ~] # Total ls-lh usage 44K-rw -------. 1 root1.2 KDecember 3 06:22 anaconda-ks.cfg-rw-r -- r --. 1 root 25 K December 3 06:22 install. log-rw-r --. 1 root 7.6 K December 3 06:21 install. log. syslog.

 

1.2 K and 7690 represent one meaning, but when ls-lh is used, the file size will be changed to the K, M, G representation we are familiar with, rather than the byte representation.

-Rw-r --

-File type (-binary file d indicates directory l indicates soft link file)

 

Rw-r --

 

U g o

 

U owner g owner group o others

PS: r read w write x Execute

 

[Root @ localhost ~] # Ls-lhd/etcdrwxr-xr-x. 102 root 12 K 06:36/etc

 

Ls-lhd/etcYesEtcThe directory size instead of viewing all contents in the ect directory.

 

[root@localhost ~]# ls -i795111 anaconda-ks.cfg  786436 install.log  786437 install.log.syslog

 

# Ls-IView the ID of each file