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Top Forums Shell Programming and Scripting Not access variable outside loop when a reading a file Post 302319090 by Armaan_S on Saturday 23rd of May 2009 09:48:38 PM
Old 05-23-2009
I am not using a pipe , but getting the same problem(sample shell script below,tree1.txt has 3 lines) , Any help would be highly appreciated:
count=0
export count
while read line
do
count=10
echo $count
done < tree1.lst
echo count:$count
Result:
10
10
10
count:0
 

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time(1T)						       Tcl Built-In Commands							  time(1T)

__________________________________________________________________________________________________________________________________________________

NAME
time - Time the execution of a script SYNOPSIS
time script ?count? _________________________________________________________________ DESCRIPTION
This command will call the Tcl interpreter count times to evaluate script (or once if count isn't specified). It will then return a string of the form 503 microseconds per iteration which indicates the average amount of time required per iteration, in microseconds. Time is measured in elapsed time, not CPU time. EXAMPLE
Estimate how long it takes for a simple Tcl for loop to count to a thousand: time { for {set i 0} {$i<1000} {incr i} { # empty body } } SEE ALSO
clock(1T) KEYWORDS
script, time 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 time(1T)
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