Comp TIA Linux+ - Ch.4
the command chmod 317 file1 would produce which of the following lines in the ls command?
--wx--xrwx1 user1 root 0 Apr 29 15:40 file1
The root user utilizes the chgrp command to give group ownership of a file to another user. What must the root user do to regain group ownership of the file?
Run chown and list the root user as the new owner
When you change the data in a file that is hard linked to three others,_______________.
The data in the file you modified as well as the data in all hard linked files are modified as they share the same data and all have the same inode and file size
locate
The fastest method to search for files in the Linux directory tree is to use this command
concatenation
The joining of trext together to make one larger whole. In Linux, words and strings of text are joined togetter to form a displayed file
after typing the ls-F command, you see the following line in the output: -rw-r-xr-- 1 user1 root 0 Apr 29 15:40 file1 what does this mean?
User1 has read and write, members of the root group have read and execute, and all others have read permissions to the file
gedit editor
a common text editor used within GUI environments
head command
a linux command that displays the first set of lines of a text file
tail command
a linux command used to diplay lines of text at the end of a file
od command
a linux command used to display the contents of a file in octal format
strings command
a linux command used to search for and display text characters in a binary file
socket file
a named pipe connecting processes on two different computers; it can also be represented by a file on the filesystem
emacs
a popular and widespread text editor more conducive to word processing than vi. It was originally developed by Richard Stallman
vi editor
a powerful command-line text editor available on most unix and linux systems
when applied to a directory SGID special permission_____________________.
causes all new files created in the directory to have the same group membership as the directory and not the entity that created them
umask 731
changes permissions on all created filed to ---r--rw-
A file has the following permissions r----x-w-. The command chmod 143 would have the same effect as this command
chmod u=x,g=r,o=wx file1
chmod
command used to change the permissions for a certain file or directory
cp command
command used to copy a file
symbolic links
commonly made to directories to simplify navigating the filesystem tree
/var directory
contains spools and log files
FHS
created to define a standard directory structure and common file location for Linux
rwxrwxrwx
default permissions given to directories
rw-rw-rw-
default permissions given to files
symbolic links
do not need to be on the same filesystem as the target
A symbolic link is also know as a soft link and is depicted by an @ appearing at the beginning of the filename when viewed using ls-l command.
false
/root
in the FHS, this directory is the root users home directory
what must a used do to run cp or mv interactively and be asked if she wants to overwrite an existing file?
just type cp or mv as they run in interactive mode by default
+ symbol next to a file in your home directory appended to the mode
means additional entries exist within the ACL of the file that can be viewed using the getfacl commmand
$
metacharacter used with the echo command to see the contents of a certain variable in memory
mv command
moves directories and files
hard links
need to reside on the same filesystem as the target
who can modify a file that has the immutable attribute set?
no one can modify
rwx
represented by the number 7
which command
searches for a file only in directories that are in the PATH variable
execute, read, write
standard linux permissions
--wx--xrwx
the command chmod 317 file1 would produce which of the following permissions?
linked file
the files that represent the same data as other files
Given the following output from the ls command, how many files are linked with file1? -rw-r--r-- 3 root root 282 Apr 29 22:06 file1
two files are linked with file1
sticky bit
use the command chmod 1777 data, which allows all users to add files to the data directory. This is because you gave the write permission, however users can only delete files that they own in data
chown user1:root file1
will change the user ownership and group ownership of file1 to user1 and root respectively
execute, read, write
3 standard Linux permissions