Revision

Log in to your Linux 2 account and create a regular file using the appropriate command, then check file permissions to select the right choice.

• -rwx-rw-r--

• -rw-rw-r--

• -rw-rw-r-x

• -rw-rwx-r--

Log in to your Linux 2 account and create a directory using the appropriate command, then check directory permissions to select the right choice.

• -rwxrwxr-x

• drwxrwxrwx

• drwxrwxr-x

• drwxr-xr-x

Log in to your Linux 2 account and use the proper command to create a regular file, then edit the file permissions to add execute permission to others and select the correct answer below.

• -rwxrwxr-x

• -rw-rw-rwx

• -r-xr-x-r-x

• -rw-rw-r-x

Operating systems stand at which layer ?

• Application

• Middle-ware

• Hardware

• All of the above

Select the open source operating system. Select all that applies.

• Windows

• Linux

• Unix

• MacOS

what is the use of redirect operator >

• The > operator redirects text to home directory

• The > operator creates a new file and redirects text to it

• The > operator read the text from a file

• None of the above

My present directory is /home/username. I want to remove file7.txt in dir3.

Select the absolute and relative pathname.

• rm dir3/file7

• rmdir dir3/file7

• rm /home/username/dir3/file7

• All of the above

Using only one command, create the following structure inside your home directory: Select the correct command.

• mkdirectory –p tempfolder/{bin/{dir1/dir2,dir5},test/unix/{dir3,dir4},lib}

• mkdir –p tempfolder/{bin/{dir1/dir2,dir5},test/unix/{dir3,dir4},lib}

• mkdir tempfolder/{bin/{dir1/dir2,dir5},test/unix/{dir3,dir4},lib}

• mkdir –p tempfolder/{bin/{dir1/dir2,dir5},test/unix/{dir3,dir4}}

Throughout the file, the word “bahrain” appears many times. Using the vi editor which command can perform a search and replace, change the word “bahrain” to “Bahrain”.

• ;%s/bahrain/Bahrain

• :%s/bahrain/Bahrain/g

• :/s/bahrain/Bahrain

• None of the above

What command is used to take the backup of a file name backupfile.txt ?

• cp --backup backupfile.txt backupfile.bak

• cp backupfile backupfile.bak

• copy backupfile backupfile.bak

• bkup ackupfile backupfile.bak