Is there a way to unzip part of a .gz file without having to unzip it all? I have a large (~139Gb) zipped .csv.gz file. I have been told that the .csv file has ~540M rows of data. I only need to access a sample of the data in the .csv file and I would be happy for it to
Tag: gzip
How to zip multiple folders separately in linux
Below mentioned folders contain some data. I need to zip all the folders separately. With this Command, I can zip only one folder How can I zip all the folders separately at once? Answer First, make sure that you are in the directory where the above mentioned folders are. Then run: find . -type d -maxdepth 1 -execdir zip ‘{}.zip’
Fast way to grep gzipped files in reverse piped to tail/head
I need to search a folder of gzipped files for a string, however I need to search starting at the bottom of each file. I then need the command to return results when it has 10 matches. So far I have this: I’m using zcat to get all the file contents, and then I use tac to reverse them. This
For zless to read empty gz file
I have tried to use zless to read (.gz) files. However, when (.gz) file is empty, it shows a message How to force zless to read an empty gz file without typing Y for many times. or Is that possible to return something like Answer zless is just a wrapper around less. You need to look at man less: -f
can’t extract tar.gz file
I used backup.sh : in /home/sebastien/save i have: i’m trying to extract this file with : but Nothing is happening /home/sebastien/tmp is empty! Answer Try removing that other command which blocks the process.
“less” consumes lots of RAM for a piped output on gzipped file, why?
Excuse me for useless cat and echo upfront, but while running less on a ~2GB .gz file I’m seeing ~25GB of RAM getting consumed (despite the output being piped into awk and consumed there): I expected above to complete without any need for RAM, but to my surprise here is how it looked like ~2.5h later (by the time it
How to gzip all files in all sub-directories in bash
I want to iterate among sub directories of my current location and gzip each file seperately. For zipping files in a directory, I use but this can just work on current directory and not the sub directories of the current directory. How can I rewrite the above statements so that It also zips the files in all subdirectories? Answer No
Splitting gzipped logfiles without storing the ungzipped splits on disk
I have a recurring task of splitting a set of large (about 1-2 GiB each) gzipped Apache logfiles into several parts (say chunks of 500K lines). The final files should be gzipped again to limit the disk usage. On Linux I would normally do: The resulting files files will be named xaa, xab, xac, etc So I do: The effect