Unix Midterm

What information is stored in an inode?

• Access permissions

• File names

• Location

• Object data

What can be inferred about the following information? d r w x r - x - - -

• This is a data file

• The group owner could make this their working directory

• This is a text document

• The other group has full permissions

Which command reflects the following permission sets of file1? User: RWX, Group: X, O: None

• chmod u = rwx, g = r , o = rwx file1

• chmod 710

• chmod u = rwx, g = rx , o - rwx file1file1

• chmod 720 file1

What are the following permissions defined as? chmod u + x , g - w , o + r file1

• Explicit

• Limited

• Global

• Relative

When is a file considered deleted in Unix?

• When the user deletes the inode from the directory

• When the rm -rf command is used

• When there are no more hard links to a file

• When the data blocks are wiped

This command is used to create a hard link or a symbolic link (symlink) to an existing file

• link file -h or -s

• mklink /H Link Target

• ls -l

• ln

Which is not a Unix shell?

• ysh

• tcsh

• bash

• sh

What does the following redirection do? 2>

• Redirect STDERR

• Redirect STDIN

• Redirect STDOUT

• Redirect STDIO

In OS X and Unix commands, the permissions: "-rwxrwxr--" would mean:

• others=read/write/execute, group=same, owner=read only

• owner=read/write, group=execute, others=read/write/execute

• owner=read/write/execute, group=same, others=read only

• group=read/write/execute, owner=same, others=read only

The cut command is does what?

• delete

• copy and paste

• cut and paste

• cuts out fields