bash

Firefox Extensions

Jan 10th

Posted by adam in bash

No comments

Thought this might double up as a note of the firefox extensions I currently have installed — I’ve tried getting this to script, but, the source file isn’t something I’m over-familiar with, and getting fields to match-up ain’t happening, due to my crapness.

Anyhow, I would appear to have these firefox extensions installed:

A few of those don’t have links I can identify from the URI.

Want some code that vaguely does this for you?

#!/bin/sh
#
# ffexts:
# list firefox extensions: names and URIs for download/homepage
#
# Copyright (c) 2010 Adam McGreggor. Some rights reserved.
# Email: <adam@amyl.org.uk> Web: <http://blog.amyl.org.uk>
#
# $Id: ffexts 119 2010-01-10 00:38:04Z adam $
#

set -e

MOZDIR=~/.mozilla/firefox
PROFDIR=`ls -lha ${MOZDIR} | grep default | awk '{print $NF}'`
FILE=extensions.rdf
INFILE=${MOZDIR}/${PROFDIR}/${FILE}
OF=~/tmp/ffexts
OUTFILE=~/pseudohome/nas-docs/firefox-extensions-$(date '+%Y%m%d')

# check for existing outfile, as we'll be
# appending; if so, zap it
if [ -e ${OUTFILE} ]; then
rm ${OUTFILE}
fi

# grab the interesting bits from the RDF file
for K in name homepageURL
do
# nice fix-up, eh?
grep "NS1:${K}" ${INFILE} | sed -e "s/NS1:${K}=//" \
-e 's/"//g' -e 's/>//' \
-e 's/^[ \t]*//' | sort | uniq > ${OF}-${K}
# using wc here is entirely optional ;)
wc -l ${OF}-${K}
# append
cat ${OF}-${K} >> ${OUTFILE}
done

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Conditional Prompt colo(u)rs

Dec 23rd

Posted by adam in ENV

No comments

I often work on several different machines, for different projects and things. It’s bloody annoying when I get the wrong machine!

I thought. I know what, I’ll make all of these machines use a colored prompt, and make that lot of machines use a different one.

(At this point, I should say that my dotfiles, and a variety of other things are kept in a subversion repo. Most of those bits are my-eyes-only (particularly a lot of the very badly/hastily thrown together scripts), but a few bits I’m gradually releasing.)

After mentioning this on twitter, a couple of people have been interested in how I did it.

The solution is quite easy, work out the hostname, and from that determine the ‘class’ of machine, and then apply some colors. The archwiki was useful in getting out the colors to use; along with underlining, and emboldening (I never use underlining, except in manuscript: ghastly thing that obscures text).

Whilst not perfect (the color parts could be set as a variable, and then passed to the PS1 line; I could have used “else” clauses…), it works. For me, so, erm, here’s my .bashrc — you want from the # work out machine name/domain: line.

A simple switch wotsits in screen(1), and

$ cd ~/pseudohome && svn up

followed with a

$ . .bashrc

is how I deploy (some people have an ’svn up’ in their start-up scripts, I don’t).

Comments here, if you want to.

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