linux terminal commands | linux command
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Basic linux commands
1.ls -l for listing the files as well as directories those are kept in the particular working directory
syntax
[root@tatya root]#ls -l
2.ls -la same as 'ls -l'but by this command we can also see the hiden files.
syntax
[root@tatya root]#ls -la
3.ls -li same as 'ls -la' but it will also shows us the inode number of each and every file
syntax
[root@tatya root]#ls -li
4.ls by this command we can see only file names of folder
syntax
[root@tatya root]#ls
5.clear - It will clear the screen
syntax
[root@tatya root]#clear
6.exit - To end a current session as well current terminal logging
syntax
[root@tatya root]exit
7.touch - To create a new empty file
syntax
[root@tatya root]#touch
8.cd to change the present directory
syntax
[root@tatya root]#cd /home/Tatya
where '/home/Tatya' is the desired directory to be change from '/root'
9.cat - To view the contents of a file and it is also used for creating a new file with some contents
syntax
[root@tatya root]#cat <file name> to view file contents
[root@tatya root]#cat > newfilename enter,then you can write something in the file and then to save the file contents press clt+d then enter
10.mkdir to make a new directory
syntax
[root@tatya root]#mkdir newdirname
you can also create a directory at your desired path without changing your present working directory
syntax
[root@tatya root]#mkdir /home/tatya/newdirname
11.rm to remove a empty file
syntax
[root@tatya root]#rm filename
12.rmdir to remove a empty directory
syntax
[root@tatya root]#rmdir directoryname
13.rm [-i/-r/-f] to remove a directory with its subdirectories as well as its files that is to remove a directory which already contains some files in it
syntax
[root@tatya root]#rm -i directory or filename
-i stands for interactively
-r stands for recursively
-f stands for forcefully
14.cp to copy something in a destination file or directory
syntax
[root@tatya root]#cp sourcepath destinationpath
example: [root@tatya root]# cp/home/tatya/helloworld.txt /root/hello
In this example the helloworld.txt file will be copied in /root/hello directory
15.mv to move one file or directory from one place to another place, it is also used for renaming a directory or file
syntax
[root@tatya root]#mv source destination
[root@tatya root]#mv oldfilename newfilename
16.dir to view the subdirectories and filesn under the directory
syntax
[root@tatya root]#dir
17.su - to become a super user
syntax
[helloworld@tatya helloworld]$su -
output : [root@tatya root#]
18.pwd to view the present working directory
syntax
[root@tatya root]#pwd
19.rpm -ivh to intall a rpm package
syntax
[root@tatya root]#rpm -ivh packagename.rpm
rpm stands for 'redhat package manager'
-i stands for install
-v stands for verbose mode
-h stands for with hash sign(#)
20.rpm -q to querry about any rpm package
syntax
[root@tatya root]#rpm -q packagename
21.rpm -e to uninstall a rpm package
syntax
[root@tatya root]#rpm -e package
22.find / -name to find any file or directory in linux file system
syntax
[root@tatya root]#find / -name filename
23.userdel to remove a user from linux
syntax
[root@tatya root]#userdel satish
