ext2 : It was only the default file sysyem upto 7.1 redhat
version
->less speed,secure and doesnt supports journaling
ext3 : this was from the 7.2 redhat version
->more speed,secure n supports journaling compared to ext2
Journaling : This is one of the default feature of ext3
which provides multipls functions like data avaliability
across improper shut downs,esay transmission between the
file systems and speed etc...
You suspect that you have two commands with the same name as the command is not producing the expected results. What command can you use to determine the location of the command being run?
You locate a command in the /bin directory but do not know what it does. What command can you use to determine its purpose
You wish to create a link to the /data directory in bob's home directory so you issue the command ln /data /home/bob/datalink but the command fails. What option should you use in this command line to be successful.
The statement z = 'expr 5 / 2′ would store which of the following values in z? a) 0 b) 1 c) 2 d) 2.5 e) 3
What is the output of the following program? [ -n $HOME ] echo $? [ -z $HOME ] echo $? a) 0 1 b) 1 0 c) 0 0 d) 1 1
What is the output of the following program? x = 3; y = 5; z = 10; if [( $x -eq 3 ) -a ( $y -eq 5 -o $z -eq 10 )] then echo $x else echo $y fi a) 1 b) 3 c) 5 d) Error
The expression expr -9 % 2 evaluates to a) 0 b) 1 c) -1 d) 2
What is the output of the following program? b = [ -n $b ] echo $? [ -z $b ] echo $? a) 1 1 b) 2 2 c) 0 0 d) 0 1
What is the output of the following code os=Unix echo 1.$os 2."$os" 3.'$os' 4.$os a) 1.Unix 2.Unix 3.Unix 4.Unix b) 1.Unix 2.Unix 3.$os 4.Unix c) 1.Unix 2.Unix 3.Unix 4.$os d) 1.Unix 2.$os 3.$os 4.$os
Create a new file "new.txt" that is a concatenation of "file1.txt" and "file2.txt"? a) cp file.txt file2.txt new.txt b) cat file1.txt file2.txt > new.txt c) mv file[12].txt new.txt d) ls file1.txt file2.txt | new.txt
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