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49 lines
1.9 KiB
Plaintext
49 lines
1.9 KiB
Plaintext
Scsh is a Unix shell in that is has significant syntax extensions to
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make writing Unix shell scripts easy (constructing pipelines, setting
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I/O redirection, conditional execution etc.). It also offers access to
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lower-level functionality like all Posix system calls, TCP/IP sockets
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and a full-featured regular expression library. This is embedded into
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a general-purpose programming language with real data types,
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extensive, syntactically clean control constructs and "real" quoting
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rules.
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Scsh is also a full implementation of R4RS Scheme with some
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non-standard behavior (required for scripting). As a result, a wide
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varity of exiting Scheme code can be used.
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The underlying Scheme implementation is a virtual machine for compact
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byte code.
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The name of the installed program is "scsh", the manpage is scsh(1),
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other documentation is in (/usr/local/)lib/scsh/doc
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To load slib, install slib into /usr/local/lib/slib and run
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(load "slib-init.scm")
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in scsh. It requires no additional setup (paths or such).
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The emacs interface is in the original distribution in emacs/. For
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documentation see doc/user-guide.txt.
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Differences between FreeBSD port and generic scsh release:
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----------------------------------------------------------
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1) When hitting C-d (end-of-file), scsh asks 100 times for
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confirmation. I changed the default to do this just once. See constant
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*y-or-n-eof-count* in scsh/rw.scm to change it.
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2) The original scsh sends a mail to the scsh authors every time you
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make the package. The FreeBSD port doesn't. The authors of scsh would
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appreciate it if you do a `(cd work/scsh-0.4.4 && make .notify)` after
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you build this package.
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3) A symbolic link ${PREFIX}/share/doc/scsh to the documentation is
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created.
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4) Some basic description text files from the distribution base dir
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are copied to lib/doc. The emacs directory is copied into
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lib/scsh/emacs. scsh's default is not to install these files.
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5) Some /usr/tmp -> /var/tmp
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Martin Cracauer <cracauer@cons.org>
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