Update cheatsheets

gzip

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# gzip
+
+> Compress/uncompress files with `gzip` compression (LZ77).
+> More information: <https://www.gnu.org/software/gzip/manual/gzip.html>.
+
+- Compress a file, replacing it with a `gzip` archive:
+
+`gzip {{file.ext}}`
+
+- Decompress a file, replacing it with the original uncompressed version:
+
+`gzip -d {{file.ext}}.gz`
+
+- Compress a file, keeping the original file:
+
+`gzip --keep {{file.ext}}`
+
+- Compress a file specifying the output filename:
+
+`gzip -c {{file.ext}} > {{compressed_file.ext.gz}}`
+
+- Decompress a `gzip` archive specifying the output filename:
+
+`gzip -c -d {{file.ext}}.gz > {{uncompressed_file.ext}}`
+
+- Specify the compression level. 1=Fastest (Worst), 9=Slowest (Best), Default level is 6:
+
+`gzip -9 -c {{file.ext}} > {{compressed_file.ext.gz}}`