Essential Linux File Management Commands: tar, zip, unzip, ln, scp, and rsync

tar: compress and decompress

Commonly used to create a .tar.gz archive with gzip compression:

# Most common: create .tar.gz archive (gzip compression), resulting in backup.tar.gz
tar -zcvf backup.tar.gz /home/user/docs  # z=gz compression, c=create, v=verbose, f=specify filename

# Create .tar.bz2 archive (bzip2 compression, higher compression ratio)
tar -jcvf backup.tar.bz2 /home/user/docs

# Extract .tar.gz to current directory
tar -zxvf backup.tar.gz  # x=extract, other parameters same as above

# Extract to specified directory (essential! avoid clutter in current directory)
tar -zxvf backup.tar.gz -C /tmp/backup  # -C specifies target directory (must exist)

# List archive contents without extracting
tar -ztvf backup.tar.gz  # t=list, v=verbose details

# Extract .tar.xz format (high compression ratio)
tar -Jxvf backup.tar.xz

zip: compress

Key options:

-r: recursive compression, required for directories

-q: silent mode, no progress output

-m: delete original files after compression

-u: update archive with new content

-d: delete specified content from the archive

# Compress a single file
zip test.zip test.txt

# Compress a directory (must include -r, otherwise ineffective)
zip -r docs.zip /home/user/docs  # recursively compress all contents of docs directory

# Silent compression (no progress output)
zip -qr docs.zip /home/user/docs

# Add new file to archive (update)
zip -u docs.zip /home/user/new_file.txt

# Delete original file after compression (save space)
zip -rm docs.zip /home/user/docs

# Delete specified file inside archive
zip -d docs.zip "docs/unused.txt"  # remove unused.txt from docs.zip

unzip: decompress

Key options:

-d: specify target directory for extracted contents

-l: list archive contents without extracting

-q: silent mode

-o: force overwrite without prompting

# Extract to current directory
unzip docs.zip

# Extract to specified directory (most common, avoid file clutter)
unzip docs.zip -d /tmp/docs  # extracts to /tmp/docs (directory created if needed)

# List archive contents without extracting
unzip -l docs.zip

# Silent extraction (no progress output)
unzip -q docs.zip

# Force overwrite during extraction (no confirmation needed)
unzip -o docs.zip

# Extract only specified file from archive
unzip docs.zip "docs/important.txt" -d /tmp  # extracts important.txt to /tmp

ln: link files

# Soft link (symbolic), supports cross-partition, not for directories
ln -s /etc/nginx/nginx.conf /tmp/nginx.conf

# Hard link shares inode with source; deleting source does not affect hard link; after source deletion, soft link fails; supports files and directories
ln /etc/nginx/nginx.conf /tmp/nginx.conf

scp: remote file transfer

# Transfer a tarball to a remote machine
scp apr-1.6.3.tar.gz root@remote-ip-address:/root

# Transfer a file using a non‑default port (11333)
scp -P 11333 111.txt [email protected]:/etc

rsync: incremental synchronization

Local sync

rsync [options] source_path destination_path
rsync -av /data/aaa.txt /backup/

Remote sync: local → remote

# Archive mode, verbose, compress; sync contents of backup to remote backup
rsync -avz /data/backup/ [email protected]:/tmp/backup/

# Remote non‑22 port
rsync -avz -e "ssh -p 11222" /data/backup/ [email protected]:/tmp/backup/

# Exclude specified files from sync
rsync -avz --exclude="log/" --exclude="*.tmp" /data/project/ [email protected]:/tmp/project/

# Large file transfer with -P for resume
rsync -avzP /data/lar.tar.gz [email protected]:/tmp/

Remote sync: remote → local

# Pull from remote to local
rsync -avz [email protected]:/var/log/nginx/ /tmp/nginx_logs/