remove extra \ in perl example

[rrdtool.git] / doc / rrd-beginners.pod

diff --git a/doc/rrd-beginners.pod b/doc/rrd-beginners.pod
index c3d0a39..1c28515 100644 (file)
--- a/doc/rrd-beginners.pod
+++ b/doc/rrd-beginners.pod
@@ -58,7 +58,7 @@ data flow to update the RRDtool database.
 =back
 
 RRDtool is designed to store time series of data. With every data
-update, an assosiated time stamp is stored. Time is always expressed
+update, an associated time stamp is stored. Time is always expressed
 in seconds passed since epoch (01-01-1970). RRDtool can be installed
 on Unix as well as Windows. It comes with a command set to carry out
 various operations on RRD databases. This command set can be accessed
@@ -149,7 +149,7 @@ is much better than to assume a missing value was 0 (zero) or any
 other number which might also be a valid data value.  For example, the
 traffic flow counter on a router keeps increasing. Lets say, a value
 is missed for an interval and 0 is stored instead of UNKNOWN. Now when
-hte next value becomes available, it will calculate the difference
+the next value becomes available, it will calculate the difference
 between the current value and the previous value (0) which is not
 correct. So, inserting the value UNKNOWN makes much more sense here.
 
@@ -292,26 +292,26 @@ generation is done using Perl scripts. These scripts are shown below:
  # calculate the average of the array
  my $tot_mem_ave = $tot_mem_sum/($count);
  # create the graph
- RRDs::graph ("/images/mem_$count.png",   \
-             "--title= Memory Usage",    \
-             "--vertical-label=Memory Consumption (MB)", \
-             "--start=$start_time",      \
-             "--end=$end_time",          \
-             "--color=BACK#CCCCCC",      \
-             "--color=CANVAS#CCFFFF",    \
-             "--color=SHADEB#9999CC",    \
-             "--height=125",             \
-             "--upper-limit=656",       \
-             "--lower-limit=0",          \
-             "--rigid",                  \
-             "--base=1024",              \
-             "DEF:tot_mem=target.rrd:mem:AVERAGE", \
-             "CDEF:tot_mem_cor=tot_mem,0,671744,LIMIT,UN,0,tot_mem,IF,1024,/",\
-             "CDEF:machine_mem=tot_mem,656,+,tot_mem,-",\
-             "COMMENT:Memory Consumption between $start_time",\
-             "COMMENT:    and $end_time                     ",\
-             "HRULE:656#000000:Maximum Available Memory - 656 MB",\
-             "AREA:machine_mem#CCFFFF:Memory Unused",   \
+ RRDs::graph ("/images/mem_$count.png",   
+             "--title= Memory Usage",    
+             "--vertical-label=Memory Consumption (MB)", 
+             "--start=$start_time",      
+             "--end=$end_time",          
+             "--color=BACK#CCCCCC",      
+             "--color=CANVAS#CCFFFF",    
+             "--color=SHADEB#9999CC",    
+             "--height=125",             
+             "--upper-limit=656",       
+             "--lower-limit=0",          
+             "--rigid",                  
+             "--base=1024",              
+             "DEF:tot_mem=target.rrd:mem:AVERAGE", 
+             "CDEF:tot_mem_cor=tot_mem,0,671744,LIMIT,UN,0,tot_mem,IF,1024,/",
+             "CDEF:machine_mem=tot_mem,656,+,tot_mem,-",
+             "COMMENT:Memory Consumption between $start_time",
+             "COMMENT:    and $end_time                     ",
+             "HRULE:656#000000:Maximum Available Memory - 656 MB",
+             "AREA:machine_mem#CCFFFF:Memory Unused",   
              "AREA:tot_mem_cor#6699CC:Total memory consumed in MB");
  my $err=RRDs::error;
  if ($err) {print "problem generating the graph: $err\n";}