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First, you create a Gnuplot template (template.gp)
set datafile separator "|"
set xdata time
set timefmt '%H:%M:%S'
set terminal png
set output 'column-@COLUMN@.png'
set yrange [0:]
set title...

I'm not surprised... That's a dangerous use of backticks (http://partmaps.org/era/unix/award.html#backticks) and useless use of cat (http://partmaps.org/era/unix/award.html). It works as a quick...

There is an issue with this line:
for i in `cat '$file' | tr -d '\r'`
Because $file is between single quote characters it will never get expanded. It should be between double quote characters.

Replace #!/bin/csh with #!/bin/sh

Why not do a md5sum of the file before you send it and check it on the receving end:

source_box $ md5sum mybigfile.tar
81836bd568b30ec974bff32af98458d1 *mybigfile.tar
source_box $ gzip...

Awk - A Tutorial and Introduction - by Bruce Barnett (http://www.grymoire.com/Unix/Awk.html)

pval is a shell variable, payload value. read puts values in variables, using the shell's usual $IFS characters as separators, and putting excess values, at least with ksh but it varies, in the last...

Well, you have an unreliable data set, so you need to analyze it without any speific time. You could use awk or shell to find each pair of lines when time folds back, an apparent day boundary. (Some...

Instead of it, you can try:


awk '{ s=substr($0,1,3); print >"acc_"s;}' temp

use this
awk '/^'$cc'/' temp >acc_$cc
instead of this
cat temp | awk '/^$cc/' >acc_$cc

1. can you ping your remote host

# XXXX is not the real hostname
ping XXXX


2. If #1 worked can you telnet to port 21 on the remote box?

telnet XXXX 21

IF you get something like this
...