12-02-2019
You may find this on-line version of "The Are of Unix Programming" useful:
The Art of Unix Programming
A quick google search for "Bash tips and tricks" turned up this fairly good article on bash:
101 Bash Commands and Tips for Beginners to Experts - DEV Community 👩*💻👨*💻
I pretty much learnt awk programming from this site . Initially I was amazed how easily awk could be used to solve problems posted here. I worked thru the solutions proposed by others and used google and other on-line resources to nut out what was going on. I did start with a lot of programming experience in other languages, which gave me a head start. Start by understanding the supplied solutions and work up to figuring out your own answers without looking at how others have done it first. Compare what you have come up with to the supplied answer. It's fairly important that you have access to a system you can trial and debug solutions on.
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LEARN ABOUT DEBIAN
pactester
pactester(1) pactester(1)
NAME
pactester - Tool to test proxy auto-config (pac) files.
SYNOPSIS
pactester <-p pacfile> <-u url> [-h host] [-c client_ip] [-e]
pactester <-p pacfile> <-f urlslist> [-c client_ip] [-e]
DESCRIPTION
pactester is a tool to test proxy auto-config (pac) files. It returns the proxy config string for the given URL and the pac file. pactester
uses pacparser C library for most of its functionality.
OPTIONS
-p pacfile
PAC file to test. Specify "-" to read from the standard input.
-u url URL to test the PAC file for.
-h host
Host part of the URL. If not specified, it's determined from the URL.
-c client_ip
Client's IP address (as returned by the function myIpAddress() in PAC files). If not specified, it defaults to the IP address of
the machine on which this tool is running.
-e Enable Microsoft PAC extensions (dnsResolveEx, myIpAddressEx, isResolvableEx).
-f urlslist
A file containing the list of URLs to be tested. This is good for testing a PAC file against a set of URLs.
EXAMPLES
To find out the proxy config string for the pac file "wpad.dat" and the URL "http://www.google.com":
$ pactester -p wpad.dat -u http://www.google.com
For a client with IP address 10.0.12.123:
$ pactester -p wpad.dat -c 10.0.12.123 -u http://www.google.com
For a pac file hosted at http://wpad/wpad.dat:
$ curl -s http://wpad/wpad.dat | pactester -p - -u http://google.com
BUGS
If you have come across a bug in pactester, please submit a bug report at http://code.google.com/p/pacparser/issues/list.
AUTHOR
Written by Manu Garg (http://www.manugarg.com).
RESOURCES
Homepage: http://code.google.com/p/pacparser.
pactester(1)