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Description - V6 Thompson Shell Ports
Welcome to Etsh (V6Sh) !
Etsh provides 2 ports of the original /bin/sh from
V6 UNIX, May 1975. "/bin/sh from V6 UNIX" ==
"V6 Thompson sh(1)" == "V6 UNIX sh(1)", or a variation
of "V6 sh(1)" || "V6 Sh" || "V6Sh" =^)
Etsh(1) is an enhanced, backward-compatible port of the
V6 UNIX <-> V6 Thompson shell. Tsh(1) is an unenhanced
port of it, and Glob(1) is a port of its global command.
Each port also includes its if(1), goto(1), and fd2(1)
shell utilities. They are built into etsh and are external
for tsh. In both cases, these utilities are required
for each shell to be a completely functional port.
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Notes
The Thompson shell's command language is a predecessor and subset
of that found in the Bourne shell and C shell. The Thompson shell's
external utilities complement the basic functionality of its
command language. Since the Thompson shell initially set the stage
for basic UNIX-shell functionality, all modern UNIX shells still
have a great deal in common with it.
The Thompson shell supports command pipelines (constructed with
| or ^), both sequential commands (;) and asynchronous commands (&)
I/O redirection (<, >, >>), globbing (*, ?, [...]), and parameter
substitution ($1, $2, $3) among other things.
+-----------------------+
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+------------------------------------------------+
gopher://etsh.nl/1/
UNIX(R) is a registered trademark of The Open Group[1].
Copyright (c) 2003-2024 Jeffrey Allen Neitzel.
All rights reserved.
Contact: gopher@etsh.nl
Powered by Gophernicus[2] running on OpenBSD[3],
via an OpenBSD vmm(4)[4]/vmd(8)[5] VM, at
OpenBSD Amsterdam[6].
References
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