A POINT BREAK UNIX COMMAND SUMMARY
On Line Help:
- man "command name"
- The man command allows the user to get information on the use of a
particular command or function.
- man -k name
- The -k option will list commands related to the given name you
want.
e.g. man ls <RETURN> would provide information
on the "ls" or list command.
e.g. man -k list<RETURN>
would provide a list of a number of commands relating to the word
list. Use the -k option when you are not sure of the particular
command you want.
The File System:
The List Command.
- ls-
- The ls command lists the files in your current working directory.
e.g. ls <RETURN> would produce a listing of the files in
your current working directory.
- ls -l
- e.g. ls -l <RETURN> would produce a listing of the
files in your current working directory as well as showingownership and
displaying the read, write, execute, permissions.
- ls -lag
- e.g. ls -lag <RETURN> would produce a list of all
current permissions field, including the group ownership of the file
in a long output.
man -ls for all options available.
The Change Directory Command:
- cd "directory name"
- The cd command changes your current working directory to the
one specified in "directory name". Using ".." moves you up one
directory in the directory hierarchy. If no directory is specified then
cd will move you to your home directory.
e.g. cd/bin <RETURN>
would move you to the "/bin" directory.
e.g. cd..<RETURN>
would move you to the previous directory, for instance to
"/finearts/home" from "/finearts/home/fflinstone".
e.g. cd <RETURN>
would move you to your home directory.
The Change File Permissions Command:
- chmod ugo+/-rwx
- The chmod command will set the file permissions on the
specified file. The first character specifies the owner's
permissions (u), the second character specifies the group
permissions (g), and the third character specifies permissions for
all others (o). Using the symbols of either +/- will determine
whether you want to give (+) or deny (-) read (r), write (w) and execute
(x) access.
e.g. chmod ugo+rwx "filename"<RETURN>
would give read, write and execute access to the owner his or her group
and others.
e.g. chmod u=rwx "filename"<RETURN>would
give read, write and execute access to the owner and deny access to all
others.
e.g. chmod go-wx "filename"<RETURN> would deny
write and execute access to group and others.
e.g. chmod o+rx
"filename"<RETURN>would give read and execute access to
everyone. (Popular command for changing file protections on Falcon.)
The Print Working Directory Command.
- pwd
- The pwd command will print the full name of your current working
directory.
e.g.pwd <RETURN> would tell you what
directory you were currently working in. For instance"finearts/home".
The Copy Command:
- cp "file name 1" "file name 2"
cp "file name"
"directory name"
- The cp command will copy the contents of "filename 1" into
"filename 2" or will copy a file into a specified directory. This
command will only work if you have read permission on the file you wish
to copy and write permission on the file or directory you wish to copy
it into.
e.g. cp report old_report <RETURN> would copy
the contents of the file "report" into the file "old_report".
e.g.
cp report /finearts/home/userID <RETURN> would copy the
file "report" into the directory "/finearts/home/userID".
The Move Command:
- mv "file name 1" "file name 2"
mv "file name"
"directory name"
- The mv command moves a file from one location to another. It
can also be used to rename files by moving them to the same place but
with a different name. This command will work only if you have both
read and write permissions on the file you are moving and write
permission on the directory you are moving it to.
e.g. mv
old_file new_file <RETURN> would rename "old_file" as
"new_file".
e.g. mv myfile /finearts/home/userID<RETURN>
would move "myfile" into the directory "/finearts/home/userID".
The Remove File Command:
- rm "file name"
- The rm command removes the file "filename" from the file system.
For this command to work you must have write permission on the file you
are removing.
e.g. rm silly_file <RETURN> would remove
the file "silly_file".
The Make Directory Command:
- mkdir "directory name"
- The mkdir command creates an empty directory with the name
"directory name". For this command to work, you must first have write
permission in the directory in which you are trying to create your new
directory.
e.g. mkdir new <RETURN> would create an
empty directory with the name "new" in the current working directory.
The Remove Directory Command:
- rmdir "directory name"
- The rmdir command removes the directory with the specified name
from the file system. To remove a directory you must first have write
permission on that directory and the directory must be empty.
e.g.
rmdir old <RETURN> would remove the directory entitled
"old" from the file system.
Viewing the Contents of a File:
The More Command:
- more "file name"
- The more command will allow you to view the contents of a file. It
will display each page of the file on the screen. To move to the next
page just hit <SPACEBAR>
e.g. more silly_file <RETURN> would display the
contents of the file called"silly_file."
Printing:
The Print Command:
lp "file name"
The lp command sends the file specified to the default printer
lp stuff <RETURN>would
send the file "stuff" to the default printer to be printed.
The Printer Queue Checks:
lpq
lpq -P"printer name"
The lpq command lists the documents waiting to be printed on the
printer.
Password Command:
- passwd
- Type this command and simply follow the instructions to change your
password.