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This document lists various internet-related utilities.


UUENCODE / UUDECODE

Internet mail protocols specify that all transmitted data be in readable text format. This makes binary enclosures in email somewhat problematic. Unix systems typically use UUENCODE and UUDECODE to get around this issue.

UUENCODE converts binary files into an ASCII format that can be appended to your mail message; UUDECODE will convert the ANSI encoded data back into a binary file. This is a convient way to distribute small shareware programs.

An alternative to UUxxCODE is BINHEX, frequently used on Macs.


TAR / COMPRESS / UNCOMPRESS

Unix systems typically use "compress" and "uncompress" to pack files for storage and transmission; they use "tar" to archive directories and subdirectories. This is similar to the functionality built into ZIP, used on DOS systems.

Occasionally, text files (such as documentation and specifications) on the internet are tar'd and compressed. DOS versions of these utilities exist to uncompress and untar these files. Note, however, tar'd and compressed binary files are generally machine-specific unix binaries and are typically not useful on DOS/Windows machines.


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