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Chapter 18 - Archive and Backup
Commands:
Compressing Programs:
gzip - Compress or expand files.
bzip2 - A block sorting file compressor.
the archiving programs:
tar - Tape-archiving utility.
zip - Package and compress files.
and the file synchronization program:
rsync - Remote file and directory synchronization.
List the /etc directory content and redirect output to foo.txt file. Check the size of the file.
pi@raspberrypi ~ $ ls /etc > foo.txt; ls -l foo*
-rw-r--r-- 1 pi pi 1798 Jul 21 09:22 foo.txt
pi@raspberrypi ~ $
Compress foo.txt file and check its size after compression. Use gzip. Then decompress the file.
pi@raspberrypi ~ $ gzip foo.txt; ls -l foo*
-rw-r--r-- 1 pi pi 910 Jul 21 09:22 foo.txt.gz
pi@raspberrypi ~ $
pi@raspberrypi ~ $ gunzip foo.txt.gz
Compress the file using bzip2 utility and check the file size.
Decompress the file.
pi@raspberrypi ~ $ bzip2 foo.txt ; ls -l foo*
-rw-r--r-- 1 pi pi 1001 Jul 21 09:22 foo.txt.bz2
pi@raspberrypi ~ $
pi@raspberrypi ~ $ bunzip2 foo.txt.bz2
pi@raspberrypi ~ $
Use foo.txt to create an archive that is going to be compressed at the same time (foo.tar.gz). Use: Verbose option.
pi@raspberrypi ~ $ tar -czvf foo.tar.gz foo.txt; ls -l foo*.gz
foo.txt
-rw-r--r-- 1 pi pi 1025 Jul 21 09:38 foo.tar.gz
pi@raspberrypi ~ $
You are about to send a file to Window user. How would you compress/decompress it?
$ zip file/unzip file
$ zip -r directory/unzip directory
There is an external disk mounted in /media/jaro directory. Its name is Seagate Expansion Drive. Crate a 'backup' directory on it and store a directory on it (my case 'Books').
Notice!
The name of a drive contains spaces. You can use quotes or backslashes to enter that disk.
$ cd /media/jaro/Seagate\ Expansion\ Drive/
$ rsync -av Books/ /media/jaro/Seagate\ Expansion\ Drive/Backup
Commands:
Compressing Programs:
gzip - Compress or expand files.
bzip2 - A block sorting file compressor.
the archiving programs:
tar - Tape-archiving utility.
zip - Package and compress files.
and the file synchronization program:
rsync - Remote file and directory synchronization.
Lab 12
- List the /etc directory content and redirect output to foo.txt file. Check the size of the file.
- Compress foo.txt file and check its size after compression. Use gzip. Then decompress the file.
- Compress the file using bzip2 utility and check the file size.
- Decompress the file.
- Use foo.txt to create an archive that is going to be compressed at the same time (foo.tar.gz). Use: Verbose option.
- You are about to send a file to Window user. How would you compress/decompres it?
- There is an external disk mounted in /media/jaro directory. Its name is Seagate Expansion Drive. Crate a 'backup' directory on it and store a directory on it (my case 'Books').
Lab 12 Solutions
List the /etc directory content and redirect output to foo.txt file. Check the size of the file.
pi@raspberrypi ~ $ ls /etc > foo.txt; ls -l foo*
-rw-r--r-- 1 pi pi 1798 Jul 21 09:22 foo.txt
pi@raspberrypi ~ $
pi@raspberrypi ~ $ gzip foo.txt; ls -l foo*
-rw-r--r-- 1 pi pi 910 Jul 21 09:22 foo.txt.gz
pi@raspberrypi ~ $
pi@raspberrypi ~ $ gunzip foo.txt.gz
Compress the file using bzip2 utility and check the file size.
Decompress the file.
pi@raspberrypi ~ $ bzip2 foo.txt ; ls -l foo*
-rw-r--r-- 1 pi pi 1001 Jul 21 09:22 foo.txt.bz2
pi@raspberrypi ~ $
pi@raspberrypi ~ $ bunzip2 foo.txt.bz2
pi@raspberrypi ~ $
pi@raspberrypi ~ $ tar -czvf foo.tar.gz foo.txt; ls -l foo*.gz
foo.txt
-rw-r--r-- 1 pi pi 1025 Jul 21 09:38 foo.tar.gz
pi@raspberrypi ~ $
You are about to send a file to Window user. How would you compress/decompress it?
$ zip file/unzip file
$ zip -r directory/unzip directory
There is an external disk mounted in /media/jaro directory. Its name is Seagate Expansion Drive. Crate a 'backup' directory on it and store a directory on it (my case 'Books').
Notice!
The name of a drive contains spaces. You can use quotes or backslashes to enter that disk.
$ cd /media/jaro/Seagate\ Expansion\ Drive/
$ rsync -av Books/ /media/jaro/Seagate\ Expansion\ Drive/Backup
