Recently I wanted
to extract the Texas hams from a long list of callsigns. As there were
over several hundred calls in the list (and I am lazy), some
automation was needed. I did it with a little Bash script and the
Callsign Server at the University of Arkansas:
The callsign server
at UALR can report the address the FCC has for hams
in its database.
[Note: This script
assumes you are familiar with Linux at the command line level and
are running the Bash shell or similar]
First place the
list of callsigns you need to search into a file with each call on
a single line. Here is an example (add a few calls if you like):
W1AW
WB5BKL
K5HLA
W5CT
The list can be
quite long. Save this as a file called:
call-list
Here is the Bash
call-list.cmd script:
#!/bin/bash
# call-list.cmd by cln – WB5BKL 10/2015
#
for CALL in `cat ./call-list`
do
echo -e "\n"
echo "\$CALL="$CALL
echo -e "\n"
sleep 1
wget -O $CALL.htm http://callsign.ualr.edu/cdetail.php?call=$CALL
done
#
Copy and save this
script as call-list.cmd. Make the script executable:
chmod +x call-list.cmd
Then place it in the
same directory as the call-list file. I would strongly suggest an
directory empty except for these two files.
Then execute the
call-list.cmd:
./call-list.cmd
You should find a
series of files have been created in the directory with the suffix:
.htm For example:
W1AW.htm
Then execute the
following command (assuming you want only the calls that were in
Texas:
grep -l "TX" *.htm
and you will see a
list of the calls that have TX as part of their address field.
Or you could do
this:
grep -l "TX" *.htm > TXcalls.txt
and the file
TXcalls.txt will contain a list of the files that had TX as a part of
the address. This list could then easily be edited to remover the
“.htm” extension – and you have your list of hams in Texas.
Of course, you could
use this to look for other states, or even calls that had “Extra”
or “CT” or “John” as a part of their listing. Lots of
possibilities here.
cln - Nick
WB5BKL
