This command creates a file “archivefile1.zip” which contains a copy of the files doc1, doc2, and doc3, located in the current directory.

This command creates a file “archivefile1.zip” which contains a copy of all files in the current directory in compressed form. However, files whose name starts with a “.” are not included. The extension “.zip” is added by the program.

This copies the current directory, including all subdirectories into the archive file.

This copies the directory “papers”, located in the current directory, into “archivefile2.zip”.

This writes the files extracted from “archivefile1.zip” to the current directory.

To create an archive using tar, use a command like this, which bundles all the files in the current directory that end with .doc into the alldocs.tar file

Creates a tar file named panda.tar containing all the files from the panda directory (and any of its subdirectories)

In these examples, the c, v, and f flags mean create a new archive, be verbose (list files being archived), and write the archive to a file.

To automatically compress the tar file as it is being created, add the z flag.

Extract files from panda.tar. To extract the contents of a tar file, use the x (extract) flag in a command.

Extract files from panda.tar.gz

c Create a new archive.
t List the contents of an archive.
x Extract the contents of an archive.
f The archive file name is given on the command line (required whenever the tar output is going to a file)
M The archive can span multiple floppies.
v Print verbose output (list file names as they are processed).
u Add files to the archive if they are newer than the copy in the tar file.
z Compress or decompress files automatically.

Add new user to existing group.

Add an existing user to an existing group.

Add a new user to primary group.

Change user’s primary group.

This command will display only the names of all directories within current directory (not recursive)

This command will display all directories within current directory (not recursive)

This command will display all directories within current directory (not recursive), but you will get the directory itself as well.

This command will display all directories within current directory (not recursive), without the directory itself.

This command will display all directories within current directory (not recursive). For directories the -F directive adds a / after the dir name.

To get only the files, you can grep by reversing the match (-v):

To get only the directories, without the / at the end. tr removes the ending / from the dir list
OR you can accomplish the same using this command: