Daily Driver

tar

Usage       : tar -cvf archive.tar files/
Example     : tar -xvf archive.tar.gz
Description : Create and extract archives (optionally compressed).
Takeaway    : Use for bundling multiple files into one archive, often combined with compression (gzip, bzip2).

gzip

Usage       : gzip file.txt
Example     : gzip access.log
Description : Compress files using GNU zip.
Takeaway    : Use for fast, efficient single-file compression.

gunzip

Usage       : gunzip file.gz
Example     : gunzip access.log.gz
Description : Decompress .gz files.
Takeaway    : Use to restore files compressed with gzip.

zip

Usage       : zip archive.zip file1 file2
Example     : zip -r project.zip project/
Description : Create compressed ZIP archives.
Takeaway    : Use for cross-platform compression (Windows/Linux).

unzip

Usage       : unzip archive.zip
Example     : unzip project.zip -d /tmp
Description : Extract files from ZIP archives.
Takeaway    : Use to unpack ZIP files, including password-protected ones.

Compression Utilities

bzip2

Usage       : bzip2 file.txt
Example     : Compress large log file.
Description : Compress files with higher ratio than gzip.
Takeaway    : Use for better compression efficiency.

bunzip2

Usage       : bunzip2 file.bz2
Example     : bunzip2 archive.tar.bz2
Description : Decompress .bz2 files.
Takeaway    : Use to restore files compressed with bzip2.

compress

Usage       : compress file.txt
Example     : compress olddata.log
Description : Legacy compression utility.
Takeaway    : Rarely used; replaced by gzip.

uncompress

Usage       : uncompress file.Z
Example     : uncompress archive.Z
Description : Decompress files compressed with compress.
Takeaway    : Use only for legacy .Z files.

RAR Utilities

rar

Usage       : rar a archive.rar files/
Example     : Compress folder into RAR.
Description : Create RAR archives.
Takeaway    : Use for RAR compression (requires external package).

unrar

Usage       : unrar x archive.rar
Example     : Extract multi-part RAR file.
Description : Extract RAR archives.
Takeaway    : Use to unpack RAR archives.

ZIP File Utilities

zipinfo

Usage       : zipinfo archive.zip
Example     : List files inside ZIP.
Description : Show contents of ZIP archives.
Takeaway    : Use for analyzing ZIP contents.

Archive Management

cpio

Usage       : cpio -ov < filelist > archive.cpio
Example     : cpio -idv < archive.cpio
Description : Copy files to/from archives.
Takeaway    : Use for backup/restore tasks.

ar

Usage       : ar rcs libfoo.a foo.o
Example     : Build static library for C programs.
Description : Create/manage static libraries.
Takeaway    : Use for software development (library management).