provides an absolute pathname that uniquely identifies a file by using the complete, explicit pathname of the file beginning with the root (/) directory
what is a relative pathname
provides a pathname that uniquely identifies a file by using the current working directory as the starting point
what characters can be used in linux file names
upper case A-Z
lower case a-z
digits 0-9
period .
underscores _
comas ,
what character will file names of invisible (hidden) files begin with
a period .
what are the ways files can be categorized
dynamic files
static files
directories can be created how
system created
user created
what does a . (dot) directory mean
is the link to the current working directory
what is .. (dot dot) directory mean
is the link to the parent directory of the current working directory
what is the limit on characters in length in linux naming conventions
255
what identifier is used to indicate a ordinary file
- (dash)
what identifier is used to indicate a directory
d (lower case D)
what identifier is used to indicate a link
l (lower case L)
what identifier is used to indicate a special file
c or b (lower case C or B)
what color is used to indicate an executable file
green
what color is used ot indicate directory
medium blue
what color is used to indicate a symbolic link
light blue
what color is used to indicate a setUID
white or red
what contain the linux system commands and programs (also called binaries)
/bin
what contains special device files that correspond to hardware components
/dev
what contains configuration files for linux and other installed software
/etc
what contains the home directories (peronal storage) for each user on the system
/home
what contains more linux binaries (special utilities not for general users)
/sbin
what is the home directory fot the root user
/root
what contains system programs and other files for general users such as online help, and documentations
/usr
what command delplays information from the online reference manuasl one screen at a time
man
the output of a command can be sent to what
the display
a file
be used as input to another command
input can be taken from where
the keyboard
a file
output from another command
by default the standard input is what and the output is what
keyboard
monitor
what symbol will create an output file if that file does not exist
>
what symbol will append (add to ) an existing file
>>
what symbol is used to redirect standard input
<
what symbol is used to redirect the output of one command to be used as input into a second command
| (pipe)
what command allows for th redirection of standard output to an output file while at the same time allowing the information to be used as input to another command or displayed ont he standard output
tee
what command displays the full path name of the current working directory
pwd
what command changes the current working directory to the directory specified
cd
what command list the contents of the current working directory or displays information about one or more files
ls
what command creates one or more directories
mkdir
what command deletes empty directories
rmdir
what command deletes one or more files ( or directories)