10-18-2012
@sathyaonnuix: The one single statement in my post will set home_url correctly, at least on my linux/bash. You don't need the second using eval. In fact, eval will do what I said in my previous post (and what you showed in your debug output).
@Don Cragun: The requestor wanted to read the extension from a file; that's what the sed construct was for.
Last edited by RudiC; 10-19-2012 at 04:55 AM..
Reason: typos
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LEARN ABOUT OPENSOLARIS
eval
eval(1T) Tcl Built-In Commands eval(1T)
__________________________________________________________________________________________________________________________________________________
NAME
eval - Evaluate a Tcl script
SYNOPSIS
eval arg ?arg ...?
_________________________________________________________________
DESCRIPTION
Eval takes one or more arguments, which together comprise a Tcl script containing one or more commands. Eval concatenates all its argu-
ments in the same fashion as the concat command, passes the concatenated string to the Tcl interpreter recursively, and returns the result
of that evaluation (or any error generated by it). Note that the list command quotes sequences of words in such a way that they are not
further expanded by the eval command.
EXAMPLE
This procedure acts in a way that is analogous to the lappend command, except it inserts the argument values at the start of the list in
the variable:
proc lprepend {varName args} {
upvar 1 $varName var
# Ensure that the variable exists and contains a list
lappend var
# Now we insert all the arguments in one go
set var [eval [list linsert $var 0] $args]
}
KEYWORDS
concatenate, evaluate, script
SEE ALSO
catch(1T), concat(1T), error(1T), list(1T), subst(1T), tclvars(1T)
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 eval(1T)