11, 23, 2020
linux terminal gzip
Use the gzip command’s compression protocol LZ77 to compress a file:
$gzip filename
The file will be appended with a .gz extension after succesfull compression and the original file will be deleted.
Use the -c option and output redirection to write the output to the filename.gz file to prevent deleting the original file:
$gzip -c filename > filename.gz
The -c option specifies that output will go to the standard output stream,leaving the original file intact
You can also use the -k option:
$gzip -k filename
There are various levels of compression.The more the compression, the longer it will take to compress and decompress.Levels range from 1 (fastest, worst compression) to 9 (slowest, better compression),the default is 6.
Choose a specific level with the number option:
$gzip -3 filename
Compress multiple files by listing them:
$gzip filename1 filename2
Compress all the files in a directory recursively using -r option:
$gzip -r folder
Use the -d option to decompress a file:
$gzip -d filename.gz