GNU shar utilities: 2. The basic shar utilities

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# 2. The basic `shar` utilities

GNU `shar` makes so-called shell archives out of many files, preparing them for transmission by electronic mail services. A shell archive is a collection of files that can be unpacked by `/bin/sh`. A wide range of features provide extensive flexibility in manufacturing shars and in specifying shar smartness. For example, `shar` may compress files, uuencode binary files, split long files and construct multi-part mailings, ensure correct unsharing order, and provide simplistic checksums. See section Invoking the `shar` program.

GNU `unshar` scans a set of mail messages looking for the start of shell archives. It will automatically strip off the mail headers and other introductory text. The archive bodies are then unpacked by a copy of the shell. `unshar` may also process files containing concatenated shell archives. See section Invoking the `unshar` program.

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