File Management Of Linux/unix with practical guide

File In Linux | In this article we learn about file management that is how to create,copy,rename and delete of file  of linux system. All datas are located in the file and all files are located inside the directories and all directories located inside the file system of the linux machine. It basically created a tree structure.

Type of file in linux system

Normally there are two types of files:

Regular file:All datas, texts, instruction are located in the regular file.

Special file:Special file provides the access of hardware like hard drive, ethenet adapter, CD-ROM. Link file is also special file of linux system.

List the file in linux system

To list the file in the linux system execute the ‘ls’ command and to get the more information we use ‘ls-l’ command .See the below output of the command.

#ls -l

total 36

-rw-------. 1 root root  1044 Aug 31 15:32 anaconda-ks.cfg

-rw-r--r--. 1 root root 10544 Aug 31 15:32 install.log

-rw-r--r--. 1 root root  3091 Aug 31 15:27 install.log.syslog

-rw-r--r--. 1 root root     9 Sep 23 15:01 test1

-rw-r--r--. 1 root root     9 Sep 23 15:01 test2

-rw-r--r--. 1 root root     9 Sep 23 15:02 test3

-rw-r--r--. 1 root root     9 Sep 23 15:02 test4

File Management Of Linux/unix with practical guide

            

       

  First field: Represent type of file and also represent permission of the file.

·          Second field: Block of memory assigned for the file .

·         Third field: Owner of the file.

·         Fourth field: Group of the file.

·         Fifth field: Size of the file in bytes.

·         Sixth field: Last creation orr modified date and time of the file.

·         Seventh field: Name of the file.

  

Create file in linux system

To create a empty file we use ‘touch’ command. After executing the command we can get the below output.

[root@localhost ~]# touch test5

[root@localhost ~]# ls -l | grep test5

-rw-r--r--. 1 root root     0 Sep 23 15:10 test5

We also create a file using vi editor.After open the vi editor to enter the edit mode press I and after write some test press wq to sand and quit from the vi editor.

Copy file in linux system

To copy the file we execute ‘cp ’ commad. After executing the command we can get the below output.

[root@localhost ~]# cp test5 test5.bak

[root@localhost ~]# ls -l | grep test5

-rw-r--r--. 1 root root     0 Sep 23 15:10 test5

-rw-r--r--. 1 root root     0 Sep 23 15:15 test5.bak

Rename file in linux system 

To rename the file we execute ‘mv ’ commad. After executing the command we can get the below output.

[root@localhost ~]# mv test5 Test5

[root@localhost ~]# ls -l | grep test5

-rw-r--r--. 1 root root     0 Sep 23 15:15 test5.bak

[root@localhost ~]# ls -l | grep Test5

-rw-r--r--. 1 root root     0 Sep 23 15:10 Test5

Delete file in linux system

To delete the file we execute ‘rm ’ commad. After executing the command we can get the below output.

[root@localhost ~]# rm Test5

rm: remove regular empty file `Test5'? y

[root@localhost ~]# ls -l | grep Test5

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