03-12-2002
What is with the '&'.
Hi Gurus,
I would appreciate if someone could enlighten this newbie as to how significant the '&' is to unix.
Currently I am getting around to writing a script which has to deal with a lot of these ampersands either as starting chars or between chars.
Please find below the simpliest way that I could find in getting this thread posted with the subject.
rose_pa--root::/data/connect>mkdir &Q2
[1] 29264
ksh: Q2: not found.
rose_pa--root::/data/connect>Usage: mkdir [-p] [-m mode] Directory ...
Would appreciate any input
thnx
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LEARN ABOUT OPENSOLARIS
tcl_allowexceptions
Tcl_AllowExceptions(3TCL) Tcl Library Procedures Tcl_AllowExceptions(3TCL)
__________________________________________________________________________________________________________________________________________________
NAME
Tcl_AllowExceptions - allow all exceptions in next script evaluation
SYNOPSIS
#include <tcl.h>
Tcl_AllowExceptions(interp)
ARGUMENTS
Tcl_Interp *interp (in) Interpreter in which script will be evaluated.
_________________________________________________________________
DESCRIPTION
If a script is evaluated at top-level (i.e. no other scripts are pending evaluation when the script is invoked), and if the script termi-
nates with a completion code other than TCL_OK, TCL_ERROR or TCL_RETURN, then Tcl normally converts this into a TCL_ERROR return with an
appropriate message. The particular script evaluation procedures of Tcl that act in the manner are Tcl_EvalObjEx, Tcl_EvalObjv, Tcl_Eval,
Tcl_EvalEx, Tcl_GlobalEval, Tcl_GlobalEvalObj, Tcl_VarEval and Tcl_VarEvalVA.
However, if Tcl_AllowExceptions is invoked immediately before calling one of those a procedures, then arbitrary completion codes are per-
mitted from the script, and they are returned without modification. This is useful in cases where the caller can deal with exceptions such
as TCL_BREAK or TCL_CONTINUE in a meaningful way.
KEYWORDS
continue, break, exception, interpreter
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Availability | SUNWTcl |
+--------------------+-----------------+
|Interface Stability | Uncommitted |
+--------------------+-----------------+
NOTES
Source for Tcl is available on http://opensolaris.org.
Tcl 7.4 Tcl_AllowExceptions(3TCL)