Linux: file transfer between different systems

 File transfer between different systems
1. File archiving
1 File archiving: is to turn multiple files into one archive file
2. tar    c creates
                f specifies the name of the archive file
                t displays the contents of the archive file
                r ##Adds to the archive file File
              --get ##Remove a single file
              --delete ##Delete a single file
               x ##Remove all the contents of the archive file
              -C ##Specify the unarchived directory-
              z ##gz format compression               -
              j ##bz2 format compression-
J ##xz format compression

2. Compress
gz:
gzip etc.tar is                 compressed into gz format
gunzip etc.tar.gz                 Unzip the gz format compressed package
tar zcf etc.tar.gz /etc                 Archive the file into tar and compress it into gz
tar zxf etc.tar.gz                 Unzip and unarchive the gz format compressed package

bz2:
bzip2 etc.tar                 compress into bz2 format bunzip2
etc .tar.bz2                 decompresses the bz2 format compressed package
tar jcf etc.tar.bz2 /etc         archives the file as tar and compresses it into bz2
tar jxf etc.tar.bz2                 decompresses and decompresses the bz2 format compressed package

xz:
xz etc.tar                        compresses into xz format
unxz etc.tar.xz                        decompress the xz format compressed package
tar Jcf etc.tar.xz /etc                archive the file as tar and compress it into zx
tar Jxf etc.tar.xz                        decompress and decompress the xz format compressed package

zip:
zip -r etc.tar.zip etc.tar         compress into zip format
unzip etc.tar.zip         decompress zip format compressed package

3. File transfer in the system
scp file username@ip:/dir             upload
scp username@ip:/ dir/file /dir     download

rsync [parameter] file username@ip:/dir

         rsync -r sync directory

                         -l do not ignore links
                         -p do not ignore file permissions
                         -t do not ignore file timestamps
                         -g do not ignore file all groups
                         -o do not ignore file owners

                         -D does not ignore device files