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Full Discussion: Regarding a query on making changes to a running script
Top Forums Shell Programming and Scripting Regarding a query on making changes to a running script Post 302943377 by RavinderSingh13 on Friday 8th of May 2015 01:18:57 AM
Old 05-08-2015
Regarding a query on making changes to a running script
Hello All,

Greetings !!

I have a query here to all is as follows:

Question: Let's say we are running a script in a UNIX box and we have opened an another session and then made changes in script of some statements NOT to be print some values(just an example) so when I am monitoring the other session changes didn't reflect, so my question is after running a script:

i- Seems script will be loaded to RAM(MEMORY of UNIX) from where it is picking the script?
ii- So after script's completion only changes will be picked which we made after running the script?
iii- Is there any way if above 2 points are valid like we can make changes while a script is running and can be shown within same run of UNIX script?

Will be grateful to you, if someone can put some light on this, I am sorry if this is a basic/dummy question but I faced this, so thought to share with all and get people's view/comments on same.


Thanks,
R. Singh
 

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LEARN ABOUT MOJAVE

tcl_allowexceptions

Tcl_AllowExceptions(3)					      Tcl Library Procedures					    Tcl_AllowExceptions(3)

__________________________________________________________________________________________________________________________________________________

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

Tcl									7.4						    Tcl_AllowExceptions(3)
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