Short test was taken by sir total marks 15
Searching
in Linux
find /home
–name newfile
Home refers where to find and name
refers what to find
find
/home –name newfolder –type f
-type f specifies that search only
folders
find
/home –name as* -type –d
It will find all folders starting with as -d specifies only folders
If you are confirmed that target is
file/folder than specify type other wise don’t mention type switch
find / -name win32.vir –ok rm “{ }” \;
Rm used for remove directory
“{ }” used for creating buffer or
temporary storage
find / -name win 32.vir –ok rm –rf “{
}” \;
ok
specify that user’s action needs verification
find / -name win 32.vir exit rm –rf “{
}” \;
due to exit
switch it will not ask for verification
find /
-name abc –type f –exec –cp –rf “{ }” /home \;
it will copy
selected files (executable files) to /home directory
Links
management
There are
two types of links
-
hard
link
-
symbolic
link
i-node
number:
a numeric value that is assigned to an folder and file is
called i-node number
to view i-node number ls -il
to create
link of file1 ln file1 file 2
in
above command file1 is existing file and file2 is link file
Advantages :
·
if you update one file other will update
·
a backup will be available
·
if you delete actual file link will be available
Disadvantages:
o
Create only files not folders
o
Only can create link within a partition can’t
create in another partition
Symbolic
links
ln s folder1 folder2
folder1 is existing folder and folder 2 is link folder
Advantages :
·
Create files and folders
·
User can create link within a partition and
within another partition
Disadvantages:
o
No backup is available
o
Works like a shortcut (if original/source folder
is deleted link will not work)
Syllabus for mid term
1-
What is mount point
2-
How to mount a storage device
3-
Basic commands (All slides)
4-
User management (only create/add a user through
both method)
5-
Links management
