restructure

technology/applications/cli/compression/p7zip.md

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+---
+obj: application
+os: linux
+aliases: ["7zip", "7z"]
+---
+# 7Zip
+7-Zip is a file archiver with the highest compression ratio. The program supports 7z (that implements LZMA compression algorithm), [ZIP](../../../files/ZIP.md), CAB, ARJ, GZIP, BZIP2, [TAR](compression/tar.md), CPIO, RPM and DEB formats. Compression ratio in the new 7z format is 30-50% better than ratio in [ZIP](../../../files/ZIP.md) format.
+
+## Usage
+Add file/directory to the archive (or create a new one):
+```shell
+7z a archive_name file_name
+7z a archive_name file_name -p -mhe=on # Password Protect
+```
+
+Update existing files in the archive or add new ones:
+```shell
+7z u archive_name file_name
+```
+
+List the content of an archive:
+```shell
+7z l archive_name
+```
+
+Extract files:
+```shell
+7z e archive_name # without using dir names
+7z x archive_name # extract with full paths
+7z x -ofolder_name archive_name # extract into folder
+```
+
+Check integrity of the archive:
+```shell
+7z t archive_name
+```

technology/applications/cli/compression/tar.md

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+---
+obj: application
+os: linux
+website: https://savannah.gnu.org/projects/tar
+repo: https://git.savannah.gnu.org/cgit/tar.git
+---
+# Tar
+Tar is the most widely used command in Unix and Linux like operating system for creating archive of multiple files and folders into a single archive file and that archive file can be further compressed using other compression techniques
+
+Creating Archives:
+```shell
+tar -cvf myarchive.tar /etc /root
+```
+
+List contents:
+```shell
+tar -tvf myarchive.tar # List contents
+tar -tvf myarchive.tar path # List contents of path
+```
+
+Append or add files:
+```shell
+tar -rvf data.tar /etc/fstab
+```
+
+Extract files:
+```shell
+tar -xvf myarchive.tar # Extract
+tar -xvf myarchive.tar -C /tmp # Extract to /temp
+tar -xvf myarchive.tar /etc/fstab -C /etc # Only extract /etc/fstab to /etc
+```