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problems with double quotes in PERL

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Top Forums Shell Programming and Scripting problems with double quotes in PERL
# 8  
Old 09-15-2008
Quote:
Originally Posted by frank_rizzo
can you post the errors?
Sure can... from /var/log/apache2/error.log

Code:
[Mon Sep 15 15:19:02 2008] [error] [client 192.168.1.5] Warning: XML::LibXML compiled against libxml2 20632, but runtime libxml2 is older 20630, referer: http://192.168.0.2/cgi-bin/weather.cgi?zip=90210
[Mon Sep 15 15:19:02 2008] [error] [client 192.168.1.5] ERROR : Garbage 'dashes, referer: http://192.168.0.2/cgi-bin/weather.cgi?zip=90210
[Mon Sep 15 15:19:02 2008] [error] [client 192.168.1.5] ' after command:, referer: http://192.168.0.2/cgi-bin/weather.cgi?zip=90210
[Mon Sep 15 15:19:02 2008] [error] [client 192.168.1.5] HRULE:29.92#BBBB00:"29.92 constant":dashes, referer: http://192.168.0.2/cgi-bin/weather.cgi?zip=90210
[Mon Sep 15 15:19:02 2008] [error] [client 192.168.1.5] , referer: http://192.168.0.2/cgi-bin/weather.cgi?zip=90210
[Mon Sep 15 15:19:02 2008] [error] [client 192.168.1.5] Premature end of script headers: weather.cgi, referer: http://192.168.0.2/cgi-bin/weather.cgi?zip=90210
[Mon Sep 15 15:19:02 2008] [error] [client 192.168.1.5] Warning: XML::LibXML compiled against libxml2 20632, but runtime libxml2 is older 20630, referer: http://192.168.0.2/cgi-bin/weather.cgi?zip=90210

# 9  
Old 09-15-2008
does
Code:
perl -c weather.cgi

run clean?

can you post the line(s) with the call to rrd?
# 10  
Old 09-15-2008
Odd... it works for me:

Code:
#!/usr/bin/perl -w
my $var = "30.0";
print "HRULE:$var#BBBB00:\"$var constant\":dashes\n";

Code:
-bash-3.00$ ./test_quotes.pl
HRULE:30.0#BBBB00:"30.0 constant":dashes

# 11  
Old 09-15-2008
try this -- add 2 backslashes before the colon


Code:
"HRULE:$var#BBBB00:\"$var constant\"\\:dashes\n";

# 12  
Old 09-15-2008
Quote:
Originally Posted by frank_rizzo
does
Code:
perl -c weather.cgi

run clean?

can you post the line(s) with the call to rrd?
Code:
perl -c weather.cgi
weather.cgi syntax OK

Sure does.... this is crazy that rrdtool will not accept the dahses option through my perl script but it will if I do it through the shell!
# 13  
Old 09-15-2008
did you try to add the 2 backslashes in post #11?
# 14  
Old 09-15-2008
Quote:
Originally Posted by frank_rizzo
try this -- add 2 backslashes before the colon


Code:
"HRULE:$var#BBBB00:\"$var constant\"\\:dashes\n";


It accepted it this time, but the output isn't correct. It should draw a dashed line on a graph @ the value of the constant. When I add the two dashes, it treats the :dashes as part of the description which reads,
Code:
"30 constant":dashes

:/
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