zutils (lzip-aware replacements for zcat, zgrep, etc)

zutils is a collection of utilities able to process any combination of
compressed and uncompressed files transparently. If any file given,
including standard input, is compressed, its decompressed content is
used. Compressed files are decompressed on the fly; no temporary files
are created. Data format is detected by its identifier string (magic
bytes), not by the file name extension. Empty files are considered
uncompressed.

These utilities are not wrapper scripts but safer and more efficient
C++ programs. In particular, the option '--recursive' is efficient in
those utilities supporting it.

Since Slackware already has zcat, zcmp, zdiff, and zgrep commands,
this package installs its binaries to /opt/zutils/bin. A profile
script is provided that sets PATH and MANPATH so the zutils versions
will be used by default. The profile script gets sourced upon login,
but you can manually "source /etc/profile.d/zutils.sh" right after
installing the package.