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1994-03-08
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TCL SHELL
The basic idea of the Tcl Shell is to provide an interactive way to access
TCL, it is *NOT* intended to serve as a pseudo-unix-shell. However, I don't
use MPW or AU/X, and therefore I implemented a few very useful unix shell
functions.
All pathnames must be mac pathnames; relative pathnames start
with colons, absolute pathnames don't. For instance, ':file1' specifies a
file named 'file1' in the current directory. '::file2' specfies a file in
the parent directory, and ':::file3' is a file in the parent's parent's
directory. Additionally, hitting the tab key w/ a partial pathname invokes
a filename-completion function that tries to fill in the rest of the
characters of the name.
The supported functions are all valid Tcl commands and the following:
cd <relative or absolute pathname>
Change directory. If called w/ no arguments, go to home directory if no
arguments.
cp <file1> <file2>
or
cp <file1> .... <destDir>
Basic unix functionality, recursive.
grep <pat> <file>...
Grep, reasonably slow.
ls [-F|l] [<file>]...
Two, mutually exclusive flags. '-F' just gives the normal display, with
a '*' behind applications and a '/' behind directories (folders). '-l'
presents a long listing, including sizes of both forks, creator, file
type, and last modification time. 'procs.tcl' includes functions 'l' and
'll' which serve as my Unix aliases to 'ls -F' and 'ls -l'.
mv <file1> <file2>
or
mv <file1> .... <destDir>
Moves a file, potentially across volume boundaries. Recursive.
rm [-r] <file>...
Removes files and empty directories. "-r" allows recursive removal, but
DON'T BLAME ME IF YOU DELETE YOUR ENTIRE DRIVE!
wc <file>...
'wc' primitive from unix, counts lines, words, characters.
The file "shell.tcl" contains Tcl code implementing the shell interface.
You can change this to suit your tastes. One recent goody is that you can
re-execute previous commands merely by moving the cursor to the line and
hitting the return key. If there is no '>' character on the line when you
hit a carriage return, the return is an ordinary new line.