Hi Guys....i am presenting this posts for those who new to Linux :-) . Actualy Linux is very intersting Operating system which is available in market for free of cost . yes its true there is no need to buy any licence for Linux.
So Let's get start.................................................................
1) General Purpose utilities :-
# cal Command to see calender for any specific month or a complete year
Usage: cal [ [month] year]
$ cal april 2009
April 2009
Su Mo Tu We Th Fr Sa
1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30
# echo Prints message on the terminal
usage : echo “<message>”
$ echo "Welcome to the workshop"
Welcome to the workshop
# who command tells you the users currently logged on to the system
Usage : $ who
srihari pts/0 2009-04-15 11:58 (:10.129.41.3)
nithin pts/1 2009-04-15 16:09 (:10.129.20.5)
avadhut pts/2 2009-04-13 14:39 (:10.129.45.20)
anil pts/3 2009-04-13 16:32 (:10.129.23.45)
2) Linux file system :-
First let see file structure in Linux :-
1) Standard directory structure
/ - the topmost ( / means where the file system is stored like C: in windows )
/dev - all the devices are accessible as files
/var - “variable” data such as mails, log files, databases
/usr - almost all the packages installed
/etc - configuration files
/home - home directories for all the users
/root - home directory of the privileged user root
/mnt - used to mount other directories/partitions.
# rm it is used to delete files
&
# rm -r it is use to delete directorys recursively
usage : $ rm -r /root/folder
# mkdir it is used to create directory (folder)
usage : $ mkdir /etc/folder
# touch it is used to create files
usage : $ touch /root/temp
LETS SEE A IMAGE ABOUT >>HOW TO EXECUTE ABOVE COMMANDS
Hope that you find this commands usefull ...if you have any quiry then you can mention it in comments of this post......... .
***********THNX************
So Let's get start.................................................................
1) General Purpose utilities :-
# cal Command to see calender for any specific month or a complete year
Usage: cal [ [month] year]
$ cal april 2009
April 2009
Su Mo Tu We Th Fr Sa
1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30
# echo Prints message on the terminal
usage : echo “<message>”
$ echo "Welcome to the workshop"
Welcome to the workshop
# who command tells you the users currently logged on to the system
Usage : $ who
srihari pts/0 2009-04-15 11:58 (:10.129.41.3)
nithin pts/1 2009-04-15 16:09 (:10.129.20.5)
avadhut pts/2 2009-04-13 14:39 (:10.129.45.20)
anil pts/3 2009-04-13 16:32 (:10.129.23.45)
2) Linux file system :-
First let see file structure in Linux :-
1) Standard directory structure
/ - the topmost ( / means where the file system is stored like C: in windows )
/dev - all the devices are accessible as files
/var - “variable” data such as mails, log files, databases
/usr - almost all the packages installed
/etc - configuration files
/home - home directories for all the users
/root - home directory of the privileged user root
/mnt - used to mount other directories/partitions.
# rm it is used to delete files
&
# rm -r it is use to delete directorys recursively
usage : $ rm -r /root/folder
# mkdir it is used to create directory (folder)
usage : $ mkdir /etc/folder
# touch it is used to create files
usage : $ touch /root/temp
LETS SEE A IMAGE ABOUT >>HOW TO EXECUTE ABOVE COMMANDS
Hope that you find this commands usefull ...if you have any quiry then you can mention it in comments of this post......... .
***********THNX************
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