is a collection of utilities able to deal with any combination of compressed and non-compressed files transparently. The utilities zcat, zcmp, zdiff, zgrep and ztest supports the compressors bzip2, gzip, lzip and xz.
| README (zutils-1.8.tar.lz) | : | README (zutils-1.9.tar.lz) |
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| Description | | Description |
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| Zutils is a collection of utilities able to process any combination of | | Zutils is a collection of utilities able to process any combination of |
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| compressed and uncompressed files transparently. If any given file, | | compressed and uncompressed files transparently. If any file given, |
| including standard input, is compressed, its decompressed content is | | including standard input, is compressed, its decompressed content is used. |
| used. Compressed files are decompressed on the fly; no temporary files | | Compressed files are decompressed on the fly; no temporary files are |
| are created. | | created. |
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| These utilities are not wrapper scripts but safer and more efficient C++ | | These utilities are not wrapper scripts but safer and more efficient C++ |
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| programs. In particular the '--recursive' option is very efficient in | | programs. In particular the option '--recursive' is very efficient in |
| those utilities supporting it. | | those utilities supporting it. |
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| The utilities provided are zcat, zcmp, zdiff, zgrep, ztest and zupdate. | | The utilities provided are zcat, zcmp, zdiff, zgrep, ztest, and zupdate. |
| The formats supported are bzip2, gzip, lzip and xz. | | The formats supported are bzip2, gzip, lzip, and xz. |
| Zutils uses external compressors. The compressor to be used for each | | Zutils uses external compressors. The compressor to be used for each format |
| format is configurable at runtime. | | is configurable at runtime. |
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| zcat, zcmp, zdiff, and zgrep are improved replacements for the shell | | zcat, zcmp, zdiff, and zgrep are improved replacements for the shell scripts |
| scripts provided by GNU gzip. ztest is unique to zutils. zupdate is | | provided by GNU gzip. ztest is unique to zutils. zupdate is similar to |
| similar to gzip's znew. | | gzip's znew. |
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| NOTE: Bzip2 and lzip provide well-defined values of exit status, which | | NOTE: Bzip2 and lzip provide well-defined values of exit status, which makes |
| makes them safe to use with zutils. Gzip and xz may return ambiguous | | them safe to use with zutils. Gzip and xz may return ambiguous warning |
| warning values, making them less reliable back ends for zutils. | | values, making them less reliable back ends for zutils. |
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| FORMAT NOTE 1: The '--format' option allows the processing of a subset | | FORMAT NOTE 1: The option '--format' allows the processing of a subset |
| of formats in recursive mode and when trying compressed file names: | | of formats in recursive mode and when trying compressed file names: |
| 'zgrep foo -r --format=bz2,lz somedir somefile.tar'. | | 'zgrep foo -r --format=bz2,lz somedir somefile.tar'. |
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| FORMAT NOTE 2: If the '--force-format' option is given, the files are | | FORMAT NOTE 2: If the option '--force-format' is given, the files are |
| passed to the corresponding decompressor without verifying their format, | | passed to the corresponding decompressor without verifying their format, |
| allowing for example the processing of compress'd (.Z) files with gzip: | | allowing for example the processing of compress'd (.Z) files with gzip: |
| 'zcmp --force-format=gz file.Z file.lz'. | | 'zcmp --force-format=gz file.Z file.lz'. |
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| LANGUAGE NOTE: Uncompressed = not compressed = plain data; it may never | | LANGUAGE NOTE: Uncompressed = not compressed = plain data; it may never have |
| have been compressed. Decompressed is used to refer to data which have | | been compressed. Decompressed is used to refer to data which have undergone |
| undergone the process of decompression. | | the process of decompression. |
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| Copyright (C) 2009-2019 Antonio Diaz Diaz. | | Copyright (C) 2009-2020 Antonio Diaz Diaz. |
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| This file is free documentation: you have unlimited permission to copy, | | This file is free documentation: you have unlimited permission to copy, |
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| distribute and modify it. | | distribute, and modify it. |
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| The file Makefile.in is a data file used by configure to produce the | | The file Makefile.in is a data file used by configure to produce the |
| Makefile. It has the same copyright owner and permissions that configure | | Makefile. It has the same copyright owner and permissions that configure |
| itself. | | itself. |
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| End of changes. 8 change blocks. |
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| 24 lines changed or deleted | | 24 lines changed or added |
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"Fossies" - the Fresh Open Source Software Archive 