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Diffstat (limited to 'README')
| -rw-r--r-- | README | 7 |
1 files changed, 4 insertions, 3 deletions
@@ -10,16 +10,17 @@ These utilities are not wrapper scripts but safer and more efficient C++ programs. In particular the "--recursive" option is very efficient in those utilities supporting it. -The provided utilities are zcat, zcmp, zdiff, zgrep and ztest. +The provided utilities are zcat, zcmp, zdiff, zgrep, ztest and zupdate. The supported formats are bzip2, gzip, lzip and xz. The compressor to be used for each format is configurable at runtime. Zcat, zcmp, zdiff, and zgrep are improved replacements for the shell -scripts provided with GNU gzip. Ztest is unique to zutils. +scripts provided with GNU gzip. Ztest is unique to zutils. Zupdate is +similar to gzip's znew. NOTE: Bzip2 and lzip provide well-defined values of exit status, which makes them safe to use with zutils. Gzip and xz may return ambiguous -warning values, making them less reliable backends for zutils. +warning values, making them less reliable back ends for zutils. LANGUAGE NOTE: Uncompressed = not compressed = plain data; it may never have been compressed. Decompressed is used to refer to data which has |