So, I’m trying to set up a ruby script that screenscrapes another website, writes the results to a local file, then rsyncs the file to another machine behind a firewall. This post details the problems I ran into while trying to get cron to run the ruby script and rsync to the remote host.
( Read the rest of this entry » )Original: craschworks - comments
If you want to use a newly installed rubygems, and you don’t want to require ‘rubygems’ for every program that uses a gem, you need to set the RUBYOPT environment variable. For example, if you’re using tcsh, you should put the following in your .tcshrc file:
setenv RUBYOPT rubygems
This will cause the rubygems module to be loaded every time your run a ruby script.
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If you call an external python script from within ruby, make sure you have any pdb.set_trace() lines commented out. When the ruby script tries to run the program, it will just hang at the point you set the trace, without giving you any output. For example, if test.py script has a pdb.set_trace() set, and you run the following command from within irb, the line will never finish executing. You’ll have to interrupt it with a CTRL-C command.
dfi_result = `/Users/build/crasch/PythonScripts/test.py -positions -total -infile /MData/Data/vyslf.csv -MStderrLoggingThreshold 3`
Original: craschworks - comments
I found Steve Litt’s Ruby Database Connectivity article quite helpful for configuring ruby access to PostgreSQL on Cygwin. However, I ran into a couple of errors while running the sample files which I detail below:
( Read the rest of this entry » )Original: craschworks - comments
If you want a list of all a ruby object’s methods, try this:
puts object.public_methods.sort
Original: craschworks - comments
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