1/7/2024 0 Comments Pingplotter pro![]() ![]() This is a list of all your current summaries. When first logging into PingPlotter’s web UI, you will be greeted with your All Targets summary. Again, pretty is as pretty does.While the majority of PingPlotter’s feature set is identical between its app and web UI, some features may only be available in one, but not the other. The final printf prints a carriage return, the text “Done.”, and finally a newline before exiting the script. Then after this zero-length string print a space and there are 62 arguments, so printf prints 62 zero-length strings following each with a space. Notes 8a & 8b: Finally, when we’ve looped through all of the IP address space we print 62 spaces to overwrite the last status message The printf that outputs the spaces is a little tricky “%0.s “ specifies to print a zero-length string with no extra characters if the string provided is longer than zero. Why all of this faffing about with text output? ‘Cause the updates let you know something is happening even when there’s a whole run of ping failures and it might as well look pretty. Note the two spaces before the r in the success update covered in note 6a those will overwrite the last two characters of the failure message which is due to “down” being longer than “up”. This overwriting will occur until a successful update overwrites the line and then moves printing to the next line down. Using printf with a r appends a carriage return so that further ping failure updates will overwrite the line. ![]() Note 7: If the variable response equals “0” then print an failure update: If you really care about errors then feel free to modify this but for successful invocations of curl you’ll still want to get rid of the stdout output it will just be a block of XML like this: … which sends both output from the command via standard output ( stdout) as well as error output to the bit bucket. ![]() Note 6b: … then invoke curl and send the command to PingPlotter to add a target specified by combination of variables $a$i (the variables’ current values are substituted for the placeholders). one or more packets received) then print, using printf, a success status update (note the carriage return, r). Note 6a: If the variable response does not equal “0” (i.e. Note 5: The $ in front of the parentheses around the ping, grep, and awk commands converts the value produced by the ping-grep-awk-awk commands into a value that can be stored in the variable response. The -F switch specifies the separator that divides the data items, in this case it specifies commas and the , which will be either 0 for ping failed or 1,2, or 3 for ping succeeded. Note 4: The output from grep is piped to the awk utility. For the successful ping example in note 1 the output from grep would be just the line:Ģ packets transmitted, 1 packets received, 50.0% packet lossĢ packets transmitted, 0 packets received, 100.0% packet loss Note 3: The output from ping is piped to grep and the argument ‘ received’ tells grep to send any line containing that argument text to stdout. PING (): 56 data bytesġ packets transmitted, 0 packets received, 100.0% packet loss ![]()
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