Tools‎ > ‎Ubuntu/Linux server‎ > ‎

gzip & tar.gz



# decompress .zip  folder (as used in Windows)


# decompress .gz file (compressed .gz file will be removed after decompression)
gzip -d sample.fastq.gz

# view the content of a .gz file
zcat sample.fastq.gz

# view top 20 line  - pass decompressed content via unix pipe to head command
zcat sample.fastq.gz | head -20 


# tar   decompress .tar.gz files
tar -zxvf samples.tar.gz

# unix pipe  pass decompressed file into a pipe: extract all tar archive files to standard output (option -O)
tar -zxOf samples.tar.gz | head -20   # views the first 20 lines


# compress single file gzip (original file will be removed after compression)
gzip sample.fastq

# compress complete directory
# tar archive (tar.gz is recommended standard in Linux)
tar -zcvf samples_compressed.tar.gz /path/to/sample/directory/

# compress a complete folder as single zip file for using in Windows (not gzip)
zip -r sample_folder/

# to change gzip level used in tar archive (default compression level is 6, max level is 9)
# a) providing the compression command by option -I
tar -I 'gzip -9' -cvf samples_compressed.tar.gz sample_directory/
# b) combine tar and gzip using a unix pipe

tar cvf - sample_directory/  | gzip -9 > samples_compressed.tar.gz

Extract single file from tar archive

# list content (all files) of a .tar.gz archive
tar -tf samples.tar.gz

# extract selected file from .tar.gz archive
tar -zxvf samples.tar.gz sample_1.fastq

Install zip and unzip

sudo apt install zip unzip

How to combine multiple files into an tar archive file (Indiana University)