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Diffstat (limited to 'doc/tclvars.n')
| -rw-r--r-- | doc/tclvars.n | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/doc/tclvars.n b/doc/tclvars.n index ffb2122..6a25087 100644 --- a/doc/tclvars.n +++ b/doc/tclvars.n @@ -5,7 +5,7 @@ '\" See the file "license.terms" for information on usage and redistribution '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. '\" -'\" RCS: @(#) $Id: tclvars.n,v 1.18 2004/10/27 14:43:54 dkf Exp $ +'\" RCS: @(#) $Id: tclvars.n,v 1.19 2004/11/15 21:46:05 dkf Exp $ '\" .so man.macros .TH tclvars n 8.0 Tcl "Tcl Built-In Commands" @@ -337,9 +337,36 @@ incompatibilities and changes to \fIy\fR represent small enhancements and bug fixes that retain backward compatibility. The value of this variable is returned by the \fBinfo tclversion\fR command. +.SH "OTHER GLOBAL VARIABLES" +The following variables are only guaranteed to exist in \fBtclsh\fR +and \fBwish\fR executables; the Tcl library does not define them +itself but many Tcl environments do. +.TP 6 +\fBargc\fR +The number of arguments to \fBtclsh\fR or \fBwish\fR. +.TP 6 +\fBargv\fR +Tcl list of arguments to \fBtclsh\fR or \fBwish\fR. +.TP 6 +\fBargv0\fR +The script that \fBtclsh\fR or \fBwish\fR started executing (if it was +specified) or otherwise the name by which \fBtclsh\fR or \fBwish\fR +was invoked. +.TP 6 +\fBtcl_interactive\fR +Contains 1 if \fBtclsh\fR or \fBwish\fR is running interactively (no +script was specified and standard input is a terminal-like device), 0 +otherwise. +.PP +The \fBwish\fR executably additionally specifies the following global +variable: +.TP 6 +\fBgeometry\fR +If set, contains the user-supplied geometry specification to use for +the main Tk window. .SH "SEE ALSO" -eval(n) +eval(n), tclsh(1), wish(1) .SH KEYWORDS arithmetic, bytecode, compiler, error, environment, POSIX, precision, subprocess, variables |