ARCHIVING FILES AND SCP – DEV Group 👩‍💻👨‍💻

ARCHIVING FILES

1. tar Command

You may archiving recordsdata or listing use the tar command. The tar command can create an archive file from a number of recordsdata. Archiving and compressing recordsdata or listing are helpful when creating beckups and transferring knowledge throughout a community.

2. Syntax and Choices of the tar Command

Syntax :

$ tar [options] [archive-file] [file or directory to be archived]

Choices :

1. -c or --create : Create a brand new archive.
2. -x or --extract : Extract from an present archive.
3. -t or --list : Listing the desk of contents of an archive.
4. -v or --verbose : Present which recordsdata get archived or extracted.
5. -f or --file= : File identify.
6. -p or --preserve-permissions : Protect the permissions of recordsdata and directories when extracting an archive, with out subtracting the umask.
7. -z or --gzip : Use gzip compression (.tar.gz).
8. -j or --bzip2 : Use bzip2 compression (.tar.bz2). bzip2 usually achieves a greater compression ratio than gzip.
9. -J or --xz : Use xz compression (.tar.xz). The xz compression usually achieves a greater compression ratio than bzip2.

3. The tar Command Utilization :

Instance :

• Consumer A will create an archive file named good friend.tar with the content material recordsdata of agung, iyan, and adit within the person A dwelling listing.
  

• The tar command also can create an archive file from a listing. Instance :
  Consumer A will create an archive file named tjkt2.tar with the contents file from /and many others listing, earlier than archiving /and many others listing, Consumer A should swap to root person, as a result of solely the basis person is allowed to learn all the recordsdata current within the /and many others listing.
  

• To checklist the contents of the tar file, you should use the -t possibility. Instance :
  

• To extract archive file, you need to create an empty listing in order to not overwrite different recordsdata. You should use -x choice to extract archive file. Instance :
  

– NOTE :
Use -p choice to protect the permissions of an archived file. Use command :

# tar -xpf [name archive-file]

4. gzip, bzip2, and xz

There are three completely different compression strategies supported by the tar command:

1. gzip
You may create a gzip compressed archive use -z possibility. Instance :

You may extract it utilizing the command :

2. bzip2
You may create a bzip2 compressed archive use -j possibility. Instance :

You may extract it utilizing the command :

3. xz
You may create a xz compressed archive use -J possibility. Instance :

You may extract it utilizing the command :

SCP

Which means of SCP

SCP (Safe Copy Protocol) is a community protocol used to securely copy recordsdata/folders between Linux (Unix) methods on a community. SCP protects your knowledge whereas copying throughout an SSH (Safe Shell) connection by encrypting the recordsdata and the passwords.

Use of SCP

SCP can be utilized to :

1. Copying recordsdata from a neighborhood host to a distant host.
   For Instance :

$ scp dwelling/adit/schedule.txt [email protected]:/dwelling/agung 

NOTE :
– dwelling/adit/schedule.txt : the identify of the file being copied and its location.
– [email protected] : the username and IP handle of the distant host.
– /dwelling/agung : the situation the place to retailer the copied file.

1. Copying recordsdata from a distant host to a neighborhood host.
   For Instance :

scp [email protected]:/dwelling/iyan/bicycle.txt dwelling/adit

NOTE :
– [email protected] : the username and IP handle of the distant host from the place the file is at present positioned.
– /dwelling/iyan/bicycle.txt : the identify of the file being copied and its location.
– dwelling/adit : the situation the place to retailer the copied file.

Thank You….