http://www.nextstep4it.com/linux-cpio-command-examples
In this post we will discuss few examples to understand the usage of cpio command
Example:1 To copy the contents of /home, run the find command as demonstrated and redirect the output to /tmp/home.cpio:
Example:2 To list the contents of home.cpio
Example:3 To restore files from home.cpio
Example:4 To copy files directly from /home into a new directory called /tmp/home.bkp
Example:6 Creating ‘.tar’ archive using ‘cpio -F’
Example:7 list the contents of “.tar” file using cpio
Example:8 Extract “.tar’ archive via cpio
Linux/UNIX cpio (copy in/out) command
copies, lists, and extracts files to and from a single file or archives.
Some of the options available with cpio command are listed in the below
table . The cpio command requires that one of the o, i, or p options
must be specified.
| Option | Description |
| -o | Copies data. |
| -i | Extracts from a copy. |
| -t | Lists copy contents. |
| -v | Verbose mode. |
| -p | Reads from a copy to get pathnames. |
| -a | Resets access times on files after they are copied. |
Example:1 To copy the contents of /home, run the find command as demonstrated and redirect the output to /tmp/home.cpio:
root@nextstep4it:~# find /home | cpio -ov > /tmp/home.cpio /home /home/nextstep4it /home/nextstep4it/CentOS-7.0-1406-x86_64-DVD.iso.3 /home/nextstep4it/CentOS-7.0-1406-x86_64-DVD.iso.4 /home/nextstep4it/.profile /home/nextstep4it/CentOS-7.0-1406-x86_64-DVD.iso.2 /home/nextstep4it/.bashrc ...............................................
Example:2 To list the contents of home.cpio
root@nextstep4it:~# cpio -itv < /tmp/home.cpio -rw-rw-r-- 1 nextstep nextstep 2556 Nov 29 13:03 /home/nextstep4it/ubuntu -rw-rw-r-- 1 nextstep nextstep 2255 Sep 1 14:32 /home/nextstep4it/.grive-last-sync.log drwxr-xr-x 17 nextstep nextstep 0 Dec 5 15:46 /home/nextstep4it/Desktop -rw-rw-r-- 1 nextstep nextstep 357376 Sep 11 12:23 /home/nextstep4it/Desktop/mysql-classroom.doc -rw-rw-r-- 1 nextstep nextstep 43008 Sep 27 13:16 /home/nextstep4it/Desktop/linux_interview_question.doc drwxrwxr-x 3 nextstep nextstep 0 Sep 12 13:59 /home/nextstep4it/Desktop/July-2014 -rw-rw-r-- 1 nextstep nextstep 8147 Sep 11 13:04 /home/nextstep4it/Desktop/July-2014/brainuse.php -rw-rw-r-- 1 nextstep nextstep 10885 Sep 11 13:16 /home/nextstep4it/Desktop/July-2014/news.php drwxrwxr-x 2 nextstep nextstep 0 Sep 11 12:34 /home/nextstep4it/Desktop/July-2014/images -rw-rw-r-- 1 nextstep nextstep 13609 Sep 11 12:34 /home/nextstep4it/Desktop/July-2014/images/3.gif -rw-rw-r-- 1 nextstep nextstep 206334 Sep 11 12:34 /home/nextstep4it/Desktop/July-2014/images/July14-header.gif -rw-rw-r-- 1 nextstep nextstep 1736 Sep 11 12:34 /home/nextstep4it/Desktop/July-2014/images/2.gif ..............................................
Example:3 To restore files from home.cpio
root@nextstep4it:~# cpio -iv < /tmp/home.cpio
Example:4 To copy files directly from /home into a new directory called /tmp/home.bkp
root@nextstep4it:~# find /home | cpio -pvd /tmp/home.bkp /tmp/home.bkp/home/nextstep4it/ubuntu /tmp/home.bkp/home/nextstep4it/.grive-last-sync.log /tmp/home.bkp/home/nextstep4it/Desktop /tmp/home.bkp/home/nextstep4it/Desktop/mysql-classroom.doc /tmp/home.bkp/home/nextstep4it/Desktop/linux_interview_question.doc /tmp/home.bkp/home/nextstep4it/Desktop/July-2014 ............................................Example:5 Copy only selected files to the home.cpio
root@nextstep4it:~# find . -iname *.php -print | cpio -ov >/tmp/home.cpio ./Desktop/July-2014/brainuse.php ./Desktop/July-2014/news.php ./Desktop/July-2014/developer_section.php ./Desktop/July-2014/mysql1.php ............................Above Command will copy all files with ‘.php’ extension in home.cpio
Example:6 Creating ‘.tar’ archive using ‘cpio -F’
root@nextstep4it:~# find . -iname *.php -print | cpio -ov -H tar -F /tmp/home.tar ./Desktop/July-2014/brainuse.php ./Desktop/July-2014/news.php ./Desktop/July-2014/developer_section.php ./Desktop/July-2014/mysql1.php ./Desktop/July-2014/index.php ............................................Above command will create a tar archive ‘home.tar’ of all the files with extension ‘.php’ using “cpio -F”
Example:7 list the contents of “.tar” file using cpio
root@nextstep4it:~# cpio -it -F /tmp/home.tar Desktop/July-2014/brainuse.php Desktop/July-2014/news.php Desktop/July-2014/developer_section.php Desktop/July-2014/mysql1.php Desktop/July-2014/index.php Desktop/July-2014/linux1.php ..................................
Example:8 Extract “.tar’ archive via cpio
root@nextstep4it:~# cpio -idv -F /tmp/home.tar
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