lzma format used by LZMA Utils and raw compressed streams with no container format headers are also supported. I actually tried 1 to 100 and none worked. xz is a general-purpose data compression tool with command line syntax similar to gzip (1) and bzip2 (1). You can then open it directly or since it is so big, it would be. xz file and select 7-Zip->Open archive Then you can double-click the. XZ files are not associated by default, so after installing 7-zip, right-click your. I did not find out where the 36 came from.ģ6 definitely did NOT work with the my file. 7-zip has a nice, easy GUI that can let you extract. I've been reading but I could not follow a lot of it. It may hold one or more compressed files. Plus 36 bytes for overhead (found by comparing the size to hd |grep 7zXZ) Commonly used for Linux software distribution, XZ files are archive files compressed with XZ compression algorithm. Specifically the part about the overhead of 36 and how he got it. Since the above question wants the last line of the file, I then pipe that through tail -n1: SIZE=$(xz -verbose -list .xz |awk 'END ') Fetch that block using tail -c and pipe that through xz. If you want the last block, you need its compressed size (column 5) plus 36 bytes for overhead (found by comparing the size to hd |grep 7zXZ). You can get the list of block offsets with xz -verbose -list FILE.xz. xz files are organised into blocks and it is possible to decompress specific blocks, if you can find the right starting position and length of the file to take. xz files are for example 6GB compressed and 60GB uncompressed, using simple commands like xzcat | tail -1 to simply look at the last line of the uncompressed file, you'd have to wait many minutes for the entire file to get decompressed.įrom reading, my understanding is that. My goal is to be able to reduce time needed to look at specific sections from the middle of very large log files compressed to.
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