system qw()

Sara has asked for the wisdom of the Perl Monks concerning the following question:

hello guys ,,thanks for help , this command work

system qw(updquery -sdate $sdate -edate $edate -brtype golden -status 
+closed);
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but :( it dosent know what $sdate and $edate ,, I tried all possible things `` '' "" but no luck so far any tips ... thanks

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Re: system qw() by Aristotle (Chancellor) on Jul 08, 2002 at 18:40 UTC
That's completely expected with `qw()` as it disables all variable interpolation. It simply splits the string on white space and turns that into a list of values - convenient since rather than `"bla", "bla", "bla"`, you can just write `qw(bla bla bla)`. In this case, to get the variable values, just close the `qw()` for a second: `system(qw(updquery -sdate), $sdate, "-edate", $edate, qw(-brtype golden -status closed));` You could just mash it all into a string for less typing, but using a list when calling system is good practice. See perldoc -f system. Makeshifts last the longest.	[reply] [d/l]
Re: system qw() by Rich36 (Chaplain) on Jul 08, 2002 at 18:43 UTC
Try `qq()`. That indicates a literal string ( same as a double quoted string), which will interpolate the variables in the string. `qw()` is a word list, and does not interpolate variables. «Rich36»	[reply] [d/l] [select]