Currently, the variable set inside the loop is not same as one the loop is completed. when i run in sh mode.
If i am running the program as ksh mode and it runs fine without any issues.
Previously it was running sh and while loop i got the variable as true and in the next variable it set to default one instead of the variable got inside the loop.
If i use ksh instead sh will there be any problem.
---------- Post updated at 06:51 AM ---------- Previous update was at 04:22 AM ----------
Thanks for your response.
If i run through ksh it is working fine.
Variable set as same even if the loop ends.
will it impact anything in the code if i run as ksh mode?
Last edited by gowthamsoft; 12-06-2017 at 08:05 AM..
Hi Gurus
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Discussion started by: prince1987
3 Replies
LEARN ABOUT REDHAT
while
while(n) Tcl Built-In Commands while(n)
__________________________________________________________________________________________________________________________________________________NAME
while - Execute script repeatedly as long as a condition is met
SYNOPSIS
while test body
_________________________________________________________________DESCRIPTION
The while command evaluates test as an expression (in the same way that expr evaluates its argument). The value of the expression must a
proper boolean value; if it is a true value then body is executed by passing it to the Tcl interpreter. Once body has been executed then
test is evaluated again, and the process repeats until eventually test evaluates to a false boolean value. Continue commands may be exe-
cuted inside body to terminate the current iteration of the loop, and break commands may be executed inside body to cause immediate termi-
nation of the while command. The while command always returns an empty string.
Note: test should almost always be enclosed in braces. If not, variable substitutions will be made before the while command starts execut-
ing, which means that variable changes made by the loop body will not be considered in the expression. This is likely to result in an
infinite loop. If test is enclosed in braces, variable substitutions are delayed until the expression is evaluated (before each loop iter-
ation), so changes in the variables will be visible. For an example, try the following script with and without the braces around $x<10:
set x 0
while {$x<10} {
puts "x is $x"
incr x
}
SEE ALSO
break(n), continue(n), for(n), foreach(n)
KEYWORDS
boolean value, loop, test, while
Tcl while(n)