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Top Forums Shell Programming and Scripting command to reduce size of file/directory??? Post 302278844 by sharadpisal on Wednesday 21st of January 2009 09:52:10 AM
Old 01-21-2009
This can happen if you are trying to compressa file which is all ready compressed. jpg files, exe files can similar results
Try to understand how compression works and you can figure out why

text file gives awesome result, I have compressed files by 97%.
 

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XZLESS(1)							     XZ Utils								 XZLESS(1)

NAME
xzless, lzless - view xz or lzma compressed (text) files SYNOPSIS
xzless [file...] lzless [file...] DESCRIPTION
xzless is a filter that displays text from compressed files to a terminal. It works on files compressed with xz(1) or lzma(1). If no files are given, xzless reads from standard input. xzless uses less(1) to present its output. Unlike xzmore, its choice of pager cannot be altered by setting an environment variable. Com- mands are based on both more(1) and vi(1) and allow back and forth movement and searching. See the less(1) manual for more information. The command named lzless is provided for backward compatibility with LZMA Utils. ENVIRONMENT
LESSMETACHARS A list of characters special to the shell. Set by xzless unless it is already set in the environment. LESSOPEN Set to a command line to invoke the xz(1) decompressor for preprocessing the input files to less(1). SEE ALSO
less(1), xz(1), xzmore(1), zless(1) Tukaani 2010-09-27 XZLESS(1)
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